Every saint has a past, and every sinner has a future.

Tomorrow never comes, man. It’s all the same fucking day.

The world is dying of machinery; that is the great disease, that is the plague that will sweep away and destroy civilization; man will have to rise against it sooner or later.

He alone who owns the youth gains the future.

The world began without man, and it will end without him.

The less a man knows about the past and the present, the more insecure must prove to be his judgment of the future.

Every man takes the limits of his own vision for the limits of the world.

As natural selection works solely by and for the good of each being, all corporeal and mental endowments will tend to progress toward perfection.

Destiny is not a matter of chance, it is a matter of choice; it is not a thing to be waited for, it is a thing to be achieved.

Often the prudent, far from making their destinies, succumb to them; it is destiny which makes them prudent.

All progress is based upon a universal, innate desire on the part of every organism to live beyond its income.

I like the dreams of the future better than the history of the past.

The future comes like an unwelcome guest.