创造力的发动机是提出一个问题:“一定要这样吗?” 政治改革、科学发展、关系改善以及更好的书都是提出这个问题后出现的。《哲学的慰藉》
The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.
The best fertilizer for any farm is the footsteps of the farmer.