Be happy, but never satisfied.
Mistakes are always forgivable, if one has the courage to admit them.
Adapt what is useful, reject what is useless, and add what is specifically your own.
Love is like a friendship caught on fire. In the beginning a flame, very pretty, often hot and fierce, but still only light and flickering. As love grows older, our hearts mature and our love becomes as coals, deep-burning and unquenchable.
A wise man can learn more from a foolish question than a fool can learn from a wise answer.
If you always put limits on everything you do, physical or anything else, it will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there, you must go beyond them.
If you spend too much time thinking about a thing, you’ll never get it done.
The doubters said, “Man can not fly,” The doers said, “Maybe, but we’ll try,” and finally soared in the morning glow while non-believers watched from below.
The key to immortality is first living a life worth remembering.