"The world is changed by your example, not by your opinion."

"'Someday' is a disease that will take your dreams to the grave with you."

"If you are insecure, guess what? The rest of the world is, too. Do not overestimate the competition and underestimate yourself. You are better than you think."

"Being able to quit things that don't work is integral to being a winner."

"Life is too short to be small."

"Excitement is the more practical synonym for happiness, and it is precisely what you should strive to chase. It is the cure-all."

"But you are the average of the five people you associate with most, so do not underestimate the effects of your pessimistic, unambitious, or disorganized friends."

"It's lonely at the top. Ninety-nine percent of people in the world are convinced they are incapable of achieving great things, so they aim for the mediocre."

"To enjoy life, you don't need fancy nonsense, but you do need to control your time and realize that most things just aren't as serious as you make them out to be."

"Most people are fast to stop you before you get started but hesitate to get in the way if you're moving."

"What we fear doing most is usually what we most need to do."

"For all of the most important things, the timing always sucks. Waiting for a good time to quit your job? The stars will never align, and the traffic lights of life will never all be green at the same time."

"People will choose unhappiness over uncertainty."

"The question you should be asking isn't, 'What do I want?' or 'What are my goals?' but 'What would excite me?'"

"Learn to be difficult when it counts. In school as in life, having a reputation for being assertive will help you receive preferential treatment without having to beg or fight for it every time."

"Information is useless if it is not applied to something important or if you will forget it before you have a chance to apply it."

"Many a false step was made by standing still."

"The opposite of love is indifference, and the opposite of happiness is boredom."

"Poisonous people do not deserve your time. To think otherwise is masochistic."

"A person's success in life can usually be measured by the number of uncomfortable conversations he or she is willing to have."

"Focus on being productive instead of busy."