In this world nothing can be said to be certain, except death and taxes. - Benjamin Franklin

Your worth consists in what you are and not in what you have. - Thomas Edison

I am not bound to win, but I am bound to be true. I am not bound to succeed, but I am bound to live up to what light I have. - Abraham Lincoln

If we did all the things we are capable of doing, we would literally astound ourselves. – Thomas Edison

Restlessness and discontent are the first necessities of progress. – Thomas Edison

Time is really the only capital that any human being has and the things that he can least afford to waste or lose. – Thomas Edison

A good intention, with a bad approach, often leads to a poor result. ― Thomas Edison

The doctor of the future will no longer treat the human frame with drugs, but rather will cure and prevent disease with nutrition. – Thomas Edison

Many of life’s failures are people who did not realize how close they were to success when. – Thomas Edison

Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time. – Thomas Edison