"There are two distinct classes of what are called thoughts: those that we produce in ourselves by reflection and the act of thinking, and those that bolt into the mind of their own accord"

"So you have to be more mentally focused in baseball."

"So, baseball is probably more physical of the two mentally."

"Success is the result of psychologically preparing for it, prior to achieving it!"

"The way to find out about our place in the universe is by examining the universe and by examining ourselves - without preconceptions, with as unbiased a mind as we can muster."

"Our limitations and success will be based, most often, on your own expectations for ourselves. What the mind dwells upon, the body acts upon."

"It pays to keep an open mind, but not so open your brains fall out."

"The Kingdom of Heaven is not a place, but a state of mind."

"We went to high school together; he was a year older than me. I remember him there . . . he was very tall and skinny, wore lots of ponytails in his head, and I'm pretty sure I bought weed from him. I had to have."

"Happiness doesn't depend on any external conditions, it is governed by our mental attitude."

"I've pretty much behaved like a knucklehead my entire life."

"Picking projects, it's always director first and then script. Those two things are pretty much head-to-head."

"Happiness doesn't depend on any external conditions, it is governed by our mental attitude"

"I've led a life of such structured discipline and always had a goal in mind of knowing what I was doing, from West Point to the Air Force combat, MIT, looking for new things to study and get involved in. And then I got into the space program, and how disciplined can you get?"

"My poor head is in such a whirl, my mind is all in bits."

"Never mind your happiness; do your duty."

"People always complain about their memories, never about their minds."

"Mediocre minds usually dismiss anything which reaches beyond their own understanding."

"Every one speaks well of his own heart, but no one dares speak well of his own mind."

"As great minds have the faculty of saying a great deal in a few words, so lesser minds have a talent of talking much, and saying nothing."

"Gracefulness is to the body what understanding is to the mind."

"The wavering mind is but a base possession."

"The mind moves in the direction of our currently dominant thoughts."

"Whatever we plant in our subconscious mind and nourish with repetition and emotion will one day become a reality."