1 . If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.
2 . Je pense, donc je suis
3 . The greatest minds are capable of the greatest vices as well as of the greatest virtues.
4 . In order to improve the mind, we ought less to learn, than to contemplate.
5 . The first precept was never to accept a thing as true until I knew it as such without a single doubt.
6 . Except our own thoughts, there is nothing absolutely in our power. I think; therefore I am.
7 .
如果你将是一个真正的寻求真理,有必要至少一次在你的生活中你怀疑,尽可能一切。
8 . A state is better governed which has few laws, and those laws strictly observed.
9 . One cannot conceive anything so strange and so implausible that it has not already been said by one philosopher or another.
10 . When it is not in our power to follow what is true, we ought to follow what is most probable.
11 . Perfect numbers like perfect men are very rare.
12 . The senses deceive from time to time, and it is prudent never to trust wholly those who have deceived us even once.
13 . Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has.
