The important thing is not to stop questioning.
The problem is not that there are problems. The problem is expecting otherwise and thinking that having problems is a problem.
The significant problems we face cannot be solved at the same level of thinking we were at when we created them.
We are too busy mopping the floor to turn off the faucet.
Norman Vincent Peale
When a problem comes along, study it until you are completely knowledgeable. Then find that weak spot, break the problem apart, and the rest will be easy.
When the only tool you own is a hammer, every problem begins to resemble a nail.
Worry is like a rocking chair - it gives you something to do but won't get you anywhere.
You can never solve a problem on the level on which it was created.