A problem of mechanics is not solved until it has been reduced to a problem of algebra.
一个力学问题只有被简化为代数问题时才算解决。
人生は、選択の連続だ。
Life is too short to waste time hating anyone.
The beginning is always today.
预测未来的最好方法就是创造它。
The Olympic Games were created for the exhaltation of the individual athlete.
实现明天的唯一限制是我们今天的疑虑。