It is no use saying, 'We are doing our best.' You have got to succeed in doing what is necessary. 

Without health life is not life; it is only a state of langour and suffering - an image of death.

Do we not realize that self respect comes with self reliance?

You cannot simultaneously prevent and prepare for war.

We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution.

The best thing about books is that you don’t need passwords to open them and a battery to read them.

I find hope in the darkest of days, and focus in the brightest. I do not judge the universe.

You must not lose faith in humanity. Humanity is an ocean; if a few drops of the ocean are dirty, the ocean does not become dirty.

Everything should be made as simple as possible, but not simpler.

Either write something worth reading or do something worth writing. 

Happiness is a state of mind.

Don't let your ego get too close to your position, so that if your position gets shot down, your ego doesn't go with it.