So long as we do not blow our brains out, we have decided life is worth living.
A reasonable probability is the only certainty.
No man would listen to you talk if he didn't know it was his turn next.
Some men storm imaginary Alps all their lives, and die in the foothills cursing difficulties which do not exist.
When a friend is in trouble, don't annoy him by asking if there is anything you can do. Think up something appropriate and do it.
If you don't learn to laugh at troubles, you won't have anything to laugh at when you grow old.