“唯一真正普遍的是人类的经验。”

To read is to travel without moving; to write is to move without traveling.

释义：跟交情浅的朋友说过多的隐私的事情，是愚蠢的。提醒人们在与人交往时，要根据实际情况和关系的深浅，采取适当的态度和行动。

The pursuit of science is more than the pursuit of understanding. It is the pursuit of a kind of wisdom that comes from knowing how much we do not know.

The true revolutionary is guided by a great feeling of love. It is impossible to think of a genuine revolutionary lacking this quality.

The course of history is the slow march of freedom.

The best prophet of the future is the past.

译文：对待亲戚族人刻薄寡恩的人，一定培养不出好儿孙，对待师长刻薄寡恩的人，一定培养不出好后代。赏析：对待任何人，我们都不能尖酸刻薄。说话带刺，做事冷酷的人处处树敌，处处示强，是很难有知心朋友的。处处伤害别人的人，内心没有一点怜悯同情之心，是无法培养出品行端正的子孙后代。