In preparing for battle I have always found that plans are useless, but planning is indispensable.
在备战时,我总是发现计划是无用的,但规划是不可或缺的。
在科学中,我们必须接受我们最珍视的理论可能是错误的这种可能性。
自由不是恩赐,而是必须争取的权利。
I don’t compete with anybody but myself. When you compete with other people, you limit yourself.