If you must look back, do so forgivingly. If you will look forward, do so prayerfully. But the wisest course would be to be present in the present gratefully.
Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.
Being the richest man in the cemetery doesn't matter to me ... Going to bed at night saying we've done something wonderful... that's what matters to me.
Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.
If I had my life to live over again, I would have made a rule to read some poetry and listen to some music at least once every week.