It’s not what you look at that matters, it’s what you see.

Henry David Thoreau

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young.

Henry Ford

You will never do anything in this world without courage. It is the greatest quality of the mind next to honor.

Aristotle

To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.

Ralph Waldo Emerson