Never use your eyes to cry for the one who fooled you, instead use it to search for the right one.

Never put off till tomorrow what you can do today

I believe things cannot make themselves impossible.

Great spirits have always encountered violent opposition from mediocre minds.

Those who don't know history are doomed to repeat it.

I never did anything worth doing by accident, nor did any of my inventions come by accident; they came by work.

We can achieve inner peace by training our minds, rather than relying on external conditions.