He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.

Persistence is very important. You should not give up unless you are forced to give up.

If you start by promising what you don't even have yet, you'll lose your desire to work towards getting it.

If nothing in this world satisfies me, perhaps it is because I was made for another world.

If you think you're too small to make a difference, try sleeping with a mosquito.

I trust that everything happens for a reason, even when we're not wise enough to see it.

“I’d rather die on my feet, than live upon my knees.”