"In most things success depends on knowing how long it takes to succeed."

"Peace is a natural effect of trade."

"We should weep for men at their birth, not at their death."

"The less men think, the more they talk."

"The function of leadership is to produce more leaders, not more followers."

"One thing that hasn't changed, though, is that we still have to hear the new ad 2 or 3 times before it begins to affect us, even when we're already familiar with the advertiser in question and have a positive opinion of them."

"The biggest disease this day and age is that of people feeling unloved."

"As for the forces, electromagnetism and gravity we experience in everyday life. But the weak and strong forces are beyond our ordinary experience. So in physics, lots of the basic building blocks take 20th- or perhaps 21st-century equipment to explore."