It is not things, but opinions about things that have absolutely no existence, which have so deranged mankind!

In pain there is as much wisdom as in pleasure: like the latter it is one of the best self preservatives of a species.

The most perfidious way of harming a cause consists of defending it deliberately with faulty arguments.

Perhaps man will rise ever higher as soon as he ceases to flow out into a god.

Winter, a bad guest, sitteth with me at home; blue are my hands with his friendly handshaking

Industriousness and conscientiousness are often at odds, because industriousness wants to pick the still sour fruit from the tree,while conscientiousness lets it hang there too long, until it falls and bruises.

All credibility, all good conscience, all evidence of truth come only from the senses.