It is evident that skepticism, while it makes no actual change in man, always makes him feel better

skepticism is slow suicide

In the end we shall have had enough of cynicism and skeptic skeptic does not mean him who doubts, but him who investigates or researches, as opposed to him who asserts and thinks that he has foundation and humbug and we shall want to live more musically

Skepticism is the first step on the road to philosophy

Skepticism is a virtue in history as well as in philosophy

The only new ideas that are not subject to our skepticism or suspicion are our own

For the skeptic there remains only one consolation: if there should be such a thing as superhuman law it is administered with subhuman inefficiency