"If you want something, you will find a way. If you don’t, you will find an excuse."

"It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is most adaptable to change."

"For manliness gains much strength by being challenged"

"Stay hungry, stay foolish"

"Ask not what your country can do for you, ask what you can do for your country"

"The only easy day is yesterday"

"When the going gets tough, the tough gets going"