“The world is moved along, not only by the mighty shoves of its heroes, but also by the agg...”
“What we have once enjoyed we can never lose.”
“What I am looking for is not out there, it is in me.”
“Never give up; great things take time.”
“The only man who never makes mistakes is the man who never does anything.”
“Doors will slam in your face. You must pick yourself up, dust yourself off, and knock agai...”
“Determination. No matter what field you're in, determination will surely get you to the top.”
“When you find your path, you must not be afraid. You need to have sufficient courage to ma...”
“The greatest discovery of any generation is that human beings can alter their lives by alt...”
“Failure and invention are inseparable twins. To invent you have to experiment, and if you ...”
“Everyone seems to have a clear idea of how other people should lead their lives, but none ...”
“No one can continually insult you or hurt your feelings without your permission.”
“Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.”
“It always seems impossible until it's done.”