Those who are believed to be most abject and humble are usually most ambitious and envious.
The highest activity a human being can attain is learning for understanding, because to understand is to be free.
Nothing exists from whose nature some effect does not follow.
The world would be happier if men had the same capacity to be silent that they have to speak.
I have striven not to laugh at human actions, not to weep at them, nor to hate them, but to understand them.