「A problem of mechanics is not solved until it has been reduced to a problem of algebra.」- 约瑟夫·路易斯·拉格朗日经典语录

A problem of mechanics is not solved until it has been reduced to a problem of algebra.

💡 解读：一个力学问题只有被简化为代数问题时才算解决。

👤 更多约瑟夫·路易斯·拉格朗日经典语录 10句

I regard as quite useless the reading of large treatises of pure analysis: too large a number of methods pass at once before the eyes.

约瑟夫·路易斯·拉格朗日

Nature laughs at the difficulties of integration.

约瑟夫·路易斯·拉格朗日

The further we advance in the knowledge of nature, the more we find that the most general laws are the simplest.

约瑟夫·路易斯·拉格朗日

A problem is half solved when it is clearly stated.

约瑟夫·路易斯·拉格朗日

The further we advance in the knowledge of the laws of nature, the more we find simplicity and harmony where before we saw only complication and discord.

约瑟夫·路易斯·拉格朗日

A problem well stated is a problem half solved.

约瑟夫·路易斯·拉格朗日

The algebraic analysis soon makes us forget the main object [of research] by focusing attention on the abstract combinations and it is only at the end that we return to the original objective.

约瑟夫·路易斯·拉格朗日

It took them only an instant to cut off that head, but France may not produce another like it in a century.

约瑟夫·路易斯·拉格朗日

The algebraic analysis is the most extensive and the most certain of all the sciences; it is the only one which has a method invariable and infallible.

约瑟夫·路易斯·拉格朗日

The algebraic analysis soon makes us forget the main object [of our research] by focusing our attention on abstract combinations and it is only at the end that we return to the original objective.

约瑟夫·路易斯·拉格朗日

李娟

但愿同入梦。

琼瑶

悲伤就是知识

拜伦

表面看起来糟糕的事，本质上却往往并非如此。

塞涅卡

我绝不坚信这个时代没有放之四海而皆准的正义和良善的价值观，它们不仅仅有，而且不是朝令夕改流动无常的，它们是稳定而永恒的。

亚历山大·索尔仁尼琴

我们根本没想到要怀疑或轻视“历史的启示”；历史就是我们的一切。

恩格斯

奇花与丽日争妍，翠竹共青天斗碧。

吴承恩

大家礼义教子弟，小家凶恶训儿郎。

周希陶

真理就是自由人的祖国。真理不存在于丑化了的现实里。生命的第一个行动就是创造的行动。在争论中是不分高贵卑鄙，也不管称号姓氏的，重要的只是真理，在它面前人人平等。

罗曼·罗兰

人人为我，我为人人。

列宁

40句相邻名言

I can calculate the motion of heavenly bodies, but not the madness of people.

艾萨克·牛顿

经典力学奠基人

Truth is ever to be found in simplicity, and not in the multiplicity and confusion of things.

艾萨克·牛顿

经典力学奠基人

Nature is pleased with simplicity. And nature is no dummy.

艾萨克·牛顿

经典力学奠基人

Tact is the art of making a point without making an enemy.

艾萨克·牛顿

经典力学奠基人

We build too many walls and not enough bridges.

艾萨克·牛顿

经典力学奠基人

Gravity explains the motions of the planets, but it cannot explain who sets the planets in motion.

艾萨克·牛顿

经典力学奠基人

The origin of all science is in the desire to know causes, and the origin of all false science and imposture is in the desire to accept false causes rather than none.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

The law of the conservation of energy is not merely an abstract principle; it is a law of nature which has been verified by countless experiments.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

The eye is not a mere optical instrument; it is the means by which the mind takes possession of the outer world.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

Every great discovery in science has been preceded by some preparatory work, often extending over many years.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

Theoretical physics is to the experimental physicist what the theory of harmony is to the composer.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

The smallest quantity of alcohol scares away the delicate visions which are the joy of the sober investigator.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

Whoever in the pursuit of science seeks after immediate practical utility may rest assured that he seeks in vain.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

The law of the conservation of energy is not merely an empirical law; it is a necessity of thought.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

The eye is not a mere optical instrument; it is the seat of the soul and the window of the mind.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

The law of the conservation of energy is the generalization of the results of experience.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

Theoretical physics is to mathematics what sculpture is to geometry.

赫尔曼·冯·亥姆霍兹

能量守恒定律奠基人

Nature laughs at the difficulties of integration.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

The algebraic analysis soon makes us forget the main object [of our research] by focusing our attention on abstract combinations and it is only at the end that we return to the original objective.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

The true method of foreseeing the future of mathematics is to study its history and its actual state.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

It took them only an instant to cut off that head, but France may not produce another like it in a century.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

The algebraic analysis is the most extensive and the most certain of all the sciences; it is the only one which has a method invariable and infallible.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

It is not enough to do good; one must do it in the right way.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

The theory of probabilities is at bottom nothing but common sense reduced to calculus.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

A problem is half solved when it is clearly stated.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

The further we advance in the knowledge of nature, the more we find that the most general laws are the simplest.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

The algebraic analysis soon makes us forget the main object [of research] by focusing attention on the abstract combinations and it is only at the end that we return to the original objective.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

A problem well stated is a problem half solved.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

I regard as quite useless the reading of large treatises of pure analysis: too large a number of methods pass at once before the eyes.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

The further we advance in the knowledge of the laws of nature, the more we find simplicity and harmony where before we saw only complication and discord.

约瑟夫·路易斯·拉格朗日

分析力学奠基人

The five essential entrepreneurial skills for success are concentration, discrimination, organization, innovation and communication.

迈克尔·法拉第

提出电磁感应定律，奠定电磁学基础

The equations of dynamics are completely expressed when they are written in the language of the calculus of variations.

詹姆斯·克拉克·麦克斯韦

经典电磁学的创始人

The second law of thermodynamics is nothing but the struggle of nature against the diffusion of heat.

路德维希·玻尔兹曼

统计力学奠基人

Who sees the future? Let us have free scope for all directions of research; away with all dogmatism, either atomistic or anti-atomistic!

路德维希·玻尔兹曼

统计力学奠基人

The general struggle for existence of animate beings is therefore not a struggle for raw materials nor for energy, but a struggle for entropy, which becomes available through the transition of energy from the hot sun to the cold earth.

路德维希·玻尔兹曼

统计力学奠基人

If you are out to describe the truth, leave elegance to the tailor.

路德维希·玻尔兹曼

统计力学奠基人

Theories are like nets: only he who casts will catch.

路德维希·玻尔兹曼

统计力学奠基人

The second law of thermodynamics, in the form it was given by Clausius, tells us that in nature there is a tendency to a certain state which we call thermal equilibrium.

路德维希·玻尔兹曼

统计力学奠基人

The general struggle for existence of animate beings is not a struggle for raw materials nor for energy, but a struggle for entropy, which becomes available through the transition of energy from the hot sun to the cold earth.

路德维希·玻尔兹曼

统计力学奠基人

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