There's no gain, without pain.

He who would trade liberty for some temporary security, deserves neither liberty nor security.

What science can there be more noble, more excellent, more useful for men, more admirably high and demonstrative, than this of mathematics?

I never turned to drink. It seemed to turn to me.

If you can't pay for a thing, don't buy it. If you can't get paid for it, don't sell it. Do this, and you will have calm and drowsy nights, with all of the good business you have now and none of the bad. If you have time, don't wait for time.

A dying man can do nothing easy.

Those things that hurt, instruct.