Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment.

Three things cannot be long hidden: the sun, the moon, and the truth.

There are only two mistakes one can make along the road to truth; not going all the way, and not starting.

It's not what you look at that matters, it's what you see.

The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.

A day of worry is more exhausting than a week of work.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

Try not to become a man of success, but rather try to become a man of value.

Happiness is impossible to define, we all have our morals and values and what makes us happy. Happiness is immersing ourselves and our values and love.

Strength and growth come only through continuous effort and struggle.

Each player must accept the cards life deals him or her: but once they are in hand, he or she alone must decide how to play the cards in order to win the game.

Those who can make you believe absurdities can make you commit atrocities.