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尽管鸟的翅膀是完美的,但如果没有空气的支撑,它永远无法将鸟托起。事实是科学的空气。没有它们,科学工作者永远无法腾飞。
We use mathematics to understand the markets, not to predict them.
You can do anything you set your mind to, man.
Happiness is not something you postpone for the future; it is something you design for the present.