“Do not let what you think they think of you make you stop and question everything you are.”

“Let me ask you a question Alex. What do you think is the greatest evil on this plant today?"
"Is that including, or not including you?”

Anthony Horowitz book Eagle Strike

“Positive thinking will let you do everything better than negative thinking will.”

Zig Ziglar (1926–2012) American motivational speaker

“Everything passes,
Everything changes,
Just do what you think you should do.”

Bob Dylan (1941) American singer-songwriter, musician, author, and artist

“don't stop to think of the words when you do stop, just stop to think of the picture better-and let your mind off yourself in this work.”

Jack Kerouac (1922–1969) American writer

“Do what is right, not what you think the high headquarters wants or what you think will make you look good.”

Norman Schwarzkopf (1934–2012) United States Army general

“What you do, the way you think, makes you beautiful.”

Scott Westerfeld book Uglies

“Would you stop thinking about what everyone wants. Stop thinking
about what I want, what he wants, what your parents want. What do you want?”

Nicholas Sparks book The Notebook

“I think if you know what you believe, it makes it a lot easier to answer questions. I can't answer your question”

George W. Bush (1946) 43rd President of the United States

“Never let the things you can't do, stop you from doing what you can.”

Ronald Reagan (1911–2004) American politician, 40th president of the United States (in office from 1981 to 1989)