Question with boldness even the existence of God; because, if there be one, he must more approve of the homage of reason than that of blindfolded fear.

Gratitude is an illness suffered by dogs.

United we stand; divided we fall.

We are what our thoughts have made us; so take care about what you think. Words are secondary. Thoughts live; they travel far.

I can never stand still. I must explore and experiment. I am never satisfied with my work. I resent the limitations of my own imagination.

Humans have come into being for the sake of each other, so either teach them, or learn to bear them.

Weakness of attitude becomes weakness of character.

Surround yourself only with people who are going to take you higher.

I believe that if you show people the problems and you show them the solutions they will be moved to act.

I'm sorry I wrote you such a long letter; I didn't have time to write a short one.

I'd rather be hated for who I am, than loved for who I am not.

The one excellent thing that can be learned from a lion is that whatever a man intends doing should be done by him with a whole-hearted and strenuous effort.

The way to become rich is to put all your eggs in one basket and then watch that basket.

Our lives begin to end the day we become silent about things that matter.

If you think in terms of a year, plant a seed; if in terms of ten years, plant trees; if in terms of 100 years, teach the people.

He that can have patience can have what he will.

The best way out is always through.

Everything I've ever done was out of fear of being mediocre.

No leader can be too far ahead of his followers.

Others have seen what is and asked why. I have seen what could be and asked why not.

I will never be by violence constrained to do anything.