What is tolerance? It is the consequence of humanity. We are all formed of frailty and error; let us pardon reciprocally each other's folly - that is the first law of nature.
The greatest consolation in life is to say what one thinks.
Opinion has caused more trouble on this little earth than plagues or earthquakes.
The best is the enemy of the good.
Doubt is not a pleasant condition, but certainty is absurd.
I am very fond of truth, but not at all of martyrdom.