Nothing is more conducive to peace of mind than not having any opinion at all.

Man loves company even if only that of a small burning candle.

Perseverance can lend the appearance of dignity and grandeur to many actions, just as silence in company affords wisdom and apparent intelligence to a stupid person.

He who is in love with himself has at least this advantage-he won't encounter many rivals.

One's first step in wisdom is to question everything and one's last is to come to terms with everything.

First there is a time when we believe everything without reasons, then for a little while we believe with discrimination, then we believe nothing whatever, and then we believe everything again-and, moreover, give reasons why we believe everything.

A book is a mirror: if an ass peers into it, you can't expect an apostle to look out.

To read means to borrow; to create out of one s readings is paying off one's debts.

Man is a masterpiece of creation, if only because no amount of determinism can prevent him from believing that he acts as a free being.

Everyone is a genius at least once a year. The real geniuses simply have their bright ideas closer together.