"In my experience, there is only one motivation, and that is desire. No reasons or principle contain it or stand against it"

"The only thing standing between you and your goal is the story you keep telling yourself as to why you can't achieve it"

"What everyone in the astronaut corps shares in common is not gender or ethnic background, but motivation, perseverance, and desire - the desire to participate in a voyage of discovery"

"Believe you can and you're halfway there"

"One of the things I have tried to do with this book and with all of them really is avoid that simple, easy, reductionist view of motivation and to show we do things for a complex net of reasons, a real braid of reasons"

"I think a lot of times it's not money that's the primary motivation factor; it's the passion for your job and the professional and personal satisfaction that you get out of doing what you do that motivates you"

"One very important aspect of motivation is the willingness to stop and to look at things that no one else has bothered to look at. This simple process of focusing on things that are normally taken for granted is a powerful source of creativity"

"Motivation is simple. You eliminate those who are not motivated"

"I think change is possible, but only for individuals who were never truly gay in the first place and who have a strong personal motivation to recover their heterosexuality"

"Motivation is the art of getting people to do what you want them to do because they want to do it"

"Motivation is everything. You can do the work of two people, but you can't be two people. Instead, you have to inspire the next guy down the line and get him to inspire his people"