Intuition is the undoubting conception of a pure and attentive mind, which arises from the light of reason alone, and is more certain than deduction.

It is best not to go on for great quest for truth , it will only make you miserable

Truths are more likely to be discovered by one man than by a nation

The principal use of prudence, of self-control, is that it teaches us to be masters of our passions, and to so control and guide them that the evils which they cause are quite bearable, and that we even derive joy from them all.

At last I will devote myself sincerely and without reservation to the general demolition of my opinions.

There is nothing so strange and so unbelievable that it has not been said by one philosopher or another.

If I go for the alternative which is false, then obviously I shall be in error; if I take the other side, then it is by... chance that I arrive at the truth, and I shall still be at fault.... In this incorrect use of free will may be found the privation which constitutes the essence of error.