真理，通过理性思考和观察自然得出。

一本书是一次被推迟的自杀。

All men have the stars， but they are not the same things for different people。 For some， who are travelers， the stars are guides。 For others they are no more than little lights in the sky。 For others， who are scholars， they are problems。 For my businessman they were wealth。 But all these stars are silent。 You – you alone – will have the stars as no one else has them.

Success is not final, failure is not fatal: It is the courage to continue that counts.

更好从来不是对每个人都更好……它总是对某些人来说更糟。