If a man sets out to hate all the miserable creatures he meets, he will not have much energy left for anything else; whereas he can despise them, one and all, with the greatest ease.

Nothing in life gives a man so much courage as the attainment or renewal of the conviction that other people regard him with favor; because it means that everyone joins to give him help and protection, which is an infinitely stronger bulwark against the ills of life than anything he can do himself.

My body and my will are one.

The eternal being..., as it lives in us, also lives in every animal.

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.

Boredom is an evil that is not to be estimated lightly. It can come in the end to real despair. The public authority takes precautions against it everywhere, as against other universal calamities.