大自然是伟大的老师，当别人睡觉时，我从她那里学得最好。

A society grows great when old men plant trees whose shade they know they shall never sit in.

假设有效性的唯一相关检验是预测与经验的比较。

"The best ideas come when you're not trying to have ideas."

The true value of a forest cannot be measured in board feet alone; its worth is in the life it sustains.

Law is nothing else than an ordinance of reason for the common good， made by him who has care of the community.

The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil and no good, nothing but blind, pitiless indifference.

Patience is bitter， but its fruit is sweet.