Train people well enough so they can leave, treat them well enough so they don't want to.
As you grow older, you will discover that you have two hands, one for helping yourself, the other for helping others.
The most important thing in communication is hearing what isn't said.
The best way to predict the future is to create it.
Theoretically there is a perfect possibility of happiness: believing in the indestructible element within oneself, and not striving towards it.