Everything's fine today, that is our illusion.

When we cannot use the compass of mathematics or the torch of experience...it is certain we cannot take a single step forward.

You will notice that in all disputes between Christians since the birth of the Church, Rome has always favored the doctrine which most completely subjugated the human mind and annihilated reason.

The man who says to me, "Believe as I do, or God will damn you," will presently say, "Believe as I do, or I shall assassinate you."

Learn to cultivate your own garden.

But nothing is more estimable than a physician who, having studied nature from his youth, knows the properties of the human body, the diseases which assail it, the remedies which will benefit it, exercises his art with caution, and pays equal attention to the rich and the poor.

It is difficult to free fools from the chains they revere.