You can do what you will, but in any given moment of your life you can will only one definite thing and absolutely nothing other than that one thing.

I am often surprised by the cleverness, and now and again by the stupidity, of my dog; and I have similar experiences with mankind.

Whatever folly men commit, be their shortcomings or their vices what they may, let us exercise forbearance; remember that when these faults appear in others it is our follies and vices that we behold.

Whoever wants his judgment to be believed, should express it coolly and dispassionately; for all vehemence springs from the will. And so the judgment might be attributed to the will and not to knowledge, which by its nature is cold.

A man who has not enough originality to think out a new title for his book will be much less capable of giving it new contents.

Without books the development of civilization would have been impossible. They are the engines of change, windows on the world, "Lighthouses" as the poet said "erected in the sea of time." They are companions, teachers, magicians, bankers of the treasures of the mind, Books are humanity in print.

The greatest of follies is to sacrifice health for any other kind of happiness.