It’s not that I’m so smart, it’s just that I stay with problems longer. – Albert Einstein
When you’re going through hell keep going. – Winston Churchill
When you come to the end of your rope, tie a knot and hang on. – Franklin D. Roosevelt
Consider the postage stamp: its usefulness consists in the ability to stick to one thing till it gets there. – Josh Billings
If we are facing in the right direction, all we have to do is keep on walking. – Buddhist Saying
Difficult things take a long time, impossible things a little longer. – Author Unknown
Let me tell you the secret that has led me to my goal. My strength lies solely in my tenacity. – Louis Pasteur
Many of life’s failures are people who did not realize how close they were to success when they gave up. – Thomas Edison
How long should you try? Until. – Jim Rohn