You must take personal responsibility. You cannot change the circumstances, the seasons, or the wind, but you can change yourself.
跟一个人相处了两个星期,不可能就此了解他究竟是怎样一个人。不过,要是我们不去尝试尝试,别人可少不了要尝试的。
教育的目的不是使年轻人在任何一门科学上都变得完美,而是要打开和培养他们的思维,使他们在将来学习任何科学时都能胜任。
The invention of the cotton gin was the result of necessity and observation.
质量不是流行语;它是一种生活方式。