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

"He that will not apply new remedies must expect new evils, for time is the greatest innovator."

"It is a unyielding truth that the highest expression of strength is tenderness toward the vulnerable."

"Travel, in the younger sort, is a part of education; in the elder, a part of experience."

"The enemy of society is middle class and the enemy of life is middle age."

"There are five issues that make a fist of a hand that can knock America out cold. They're lack of jobs, obesity, diabetes, homelessness, and lack of good education."

"I am often amazed at how much more capability and enthusiasm for science there is among elementary school youngsters than among college students."

"I've never let my school interfere with my education."