Passions destroy more prejudices than philosophy does.
The first step towards philosophy is incredulity.
Posterity for the philosopher is what the other world is for the religious man.
What has not been examined impartially has not been well examined. Skepticism is therefore the first step towards truth.
We are all instruments endowed with feeling and memory. Our senses are so many strings that are struck by surrounding objects and that also frequently strike themselves.
Philosophy is as far separated from impiety as religion is from fanaticism.
Skepticism is the first step on the road to philosophy.