The source of every crime, is some defect of the understanding; or some error in reasoning; or some sudden force of the passions.
The forest does not belong to us—we belong to the forest, and our duty is to protect it.
我不是那种在关键时刻退缩的人。
科学不是神学的婢女;重点不是用科学证明宗教教条,而是理解世界的本来面目。
Men marry because they are tired, women because they are curious; both are disappointed.
实现明天的唯一限制是我们今天的疑虑。