Everything in nature is bipolar, or has a positive and a negative pole.

Ralph Waldo Emerson

Accept the fact that all events occur for a reason, and that it is within your capacity to see this reason as positive.

Robert Greene

It is a man's own mind, not his enemy or foe, that lures him to evil ways.

Buddha

If we spend our time with regrets over yesterday, and worries over what might happen tomorrow, we have no today in which to live.

Thomas Sowell

The one who has conquered himself is a far greater hero than he who has defeated a thousand times a thousand men.

Buddha

Everybody does have a book in them, but in most cases that's where it should stay.

Christopher Hitchens