“Men never do evil so completely and cheerfully as when they do it from religious conviction”

“A clever person solves a problem. A wise person avoids it.”

“There are no secrets to success. It is the result of preparation, hard work, and learning ...”

“The simple things are also the most extraordinary things, and only the wise can see them.”

“The mind can only think about one thing at a time. Make sure it's the right thing.”

“There's two buttons I never like to hit: that's panic and snooze.”

“Success does not consist in never making mistakes but in never making the same one a second time”

“Stop letting people who do so little for you control so much of your mind, feelings and emotions.”

“Make every detail perfect and limit the number of details to perfect.”

“The quieter you become, the more you are able to hear.”

“If you're not stubborn, you'll give up on experiments too soon.”

“The supreme art of war is to subdue the enemy without fighting.”

“Wake up determined. Go to bed satisfied.”