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

My interest is in the future, because I am going to spend the rest of my life there.

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.

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

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

I don’t try to describe the future. I try to prevent it.

He alone who owns the youth gains the future.

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

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

God seems to have left the receiver off the hook, and time is running out.

Fate leads the willing and drags along those who hang back.

Do not boast about tomorrow, for you do not know what a day may bring.

Not a change for the better in our human housekeeping has ever taken place that wise and good men have not opposed it—have not prophesied that the world would wake up to find its throat cut in consequence.