Let us study things that are no more. It is necessary to understand them, if only to avoid them.

One believes others will do what he will do to himself.

...Human thought has no limit. At its risk and peril, it analyzes and dissects its own fascination. We could almost say that, by a sort of splendid reaction, it fascinates nature; the mysterious world surrounding us returns what it receives; it is likely that contemplators are contemplated.

Great blunders are often made, like large ropes, of a multitude of fibres.

It is by suffering that human beings become angels.

Freedom begins where it ends ignorance.

In the animal world no creature born to be a dove turns into a scavenger. This happens only among men.