"Liberty, according to my metaphysics is a self-determining power in an intellectual agent. It implies thought and choice and power."

"I always consider the settlement of America with reverence and wonder, as the opening of a grand scene and design in providence, for the illumination of the ignorant and the emancipation of the slavish part of mankind all over the earth."

"Old minds are like old horses; you must exercise them if you wish to keep them in working order."

"There is danger from all men. The only maxim of a free government ought to be to trust no man living with power to endanger the public liberty."

"He who seeks peace must remember that joy is found not in possessing, but in appreciating."

"I've always said that an art critic can put aside politics around art."

"Ironically, it is exactly because we are a city that embraces freedom, that welcomes everyone and encourages their dreams, that New York remains on the front lines in the war on terror."

"It is a humble truth that he who conquers his inner doubts has already won half the war."