One must be deeply aware of the impermanence of the world.
Make your stand today. On this spot. On this day.
The pessimist sees difficulty in every opportunity. The optimist sees opportunity in every difficulty.
A simple rule in dealing with those who are hard to get along with is to remember that this person is striving to assert his superiority; and you must deal with him from that point of view.
– King Arthur
Learn to use your emotions to think, not think with your emotions.