追求数学真理是一项既个人又普遍的努力。
The pursuit of mathematical truth is a deeply personal and profoundly universal endeavor.
心理学理论的价值是由其实用性衡量的。
I decided long ago never to walk in anyone's shadow; if I fail, or if I succeed at least I did as I believe.
The only real death is the death of the spirit.
译文:善于创始的人不一定完成得很好,有个好开头的人不一定有好结果。
【译文】他人骑大马我骑毛驴,仔细想想,我不如他,回头看了一下,还有不如我徒步肩挑的人呢。