A stitch in time saves nine.
Experience is the name everyone gives to their mistakes.
Wisdom is the reward you get for a lifetime of listening when you'd have preferred to talk.
It's better to be a lion for a day than a sheep all your life.
In the end, it's not the years in your life that count. It's the life in your years.
You can't cross the sea merely by standing and staring at the water.