Quotations on certainty

When I was young I was sure of everything; in a few years, having been mistaken a thousand times, I was not half so sure of most things as I was before; at present, I am hardly sure of anything but what God has revealed to me.

-John Wesley

To be absolutely certain about something, one must know everything or nothing about it.

-Olin Miller

In these matters the only certainty is that there is nothing certain.

-Pliny the Elder

Ah, what a dusty answer gets the soul when hot for certainties in this our life!

-George Meredith

There is no such uncertainty as a sure thing.

-Robert Burns

If we begin with certainties, we shall end in doubts; but if we begin with doubts, and are patient in them, we shall end in certainties.

-Francis Bacon

Convictions are more dangerous foes of truth than lies.

-Nietzsche

There is nothing certain in a man's life but that he must lose it.

-Owen Meredith

To be positive: to be mistaken at the top of one's voice.

-Ambrose Bierce