“It is never too late to be what you might have been.”

“Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.”

“The teacher, if indeed wise, does not bid you to enter the house of their wisdom, but leads you to the threshold of your own mind.”

“Words may show a man’s wit but actions his meaning.”

“Whenever we’re afraid, it’s because we don’t know enough. If we understood enough, we would never be afraid.”

“Every man is the son of his own works.”

“The man who removes a mountain begins by carrying away small stones.”

“One of the greatest moments in anybody’s developing experience is when he no longer tries to hide from himself but determines to get acquainted with himself as he really is.”

“Hope and patience are two sovereign remedies for all, the surest reposals, the softest cushions to lean on in adversity.”

“Just a few centuries ago, the smartest humans alive were dead wrong about damn near everything. They were wrong about gods. Wrong about astronomy. Wrong about disease. Wrong about heredity. Wrong about physics. Wrong about racism, sexism, nationalism, governance, and many other moral issues. Wrong about geology. Wrong about cosmology. Wrong about chemistry. Wrong about evolution. Wrong about nearly every subject imaginable.”