"A leader does not command the wind, but sets the sails and steadies the crew. Let this simple maxim guide your daily deeds — an essential principle for the reflective life."

"It is a timeless truth that justice is the harmonious balance between individual liberty and collective good — an essential principle for the reflective life."

"Wisdom principle 46 tells us that the journey of life is lesson 35."

"Science is a wonderful thing if one does not have to earn one's living at it."

"I think the teaching profession contributes more to the future of our society than any other single profession."

"Unconditional war can no longer lead to unconditional victory. It can no longer serve to settle disputes... can no longer be of concern to great powers alone."

"I won't compare ants and people, but ants give us a useful model of how single members of a community can become so organized that they end up resembling, in effect, one big collective brain. Our own exploding population and communication technology are leading us that way."

"Don't ever let economic alone determine your career or how you spend the majority of your time."