Buddha
A generous heart, kind speech, and a life of service and compassion are the things which renew humanity.
An insincere and evil friend is more to be feared than a wild beast, a wild beast may wound your body, but an evil friend will wound your mind.
The secret of health for both mind and body is not to mourn for the past, worry about the future, or anticipate troubles but to live in the present moment wisely and earnestly.
Do not believe in anything simply because you have heard it. Do not believe in anything simply because it is spoken and rumored by many. Do not believe in anything simply because it is found written in your religious books. Do not believe in anything merely on the authority of your teachers and elders. Do not believe in traditions because they have been handed down for many generations. But after observation and analysis, when you find that anything agrees with reason and is conducive to the good and benefit of one and all, then accept it and live up to it.
And let it spring from love, born out of concern for all beings.
Suffering is wishing things were other than they are.
Letting go of our suffering is the hardest thing we will ever do.