Some mistakes will be made along the way. That's good. Because some decisions are being made along the way. We'll find the mistakes. We'll fix them.

There is no worse mistake in public leadership than to hold out false hope soon to be swept away.

The stern compression of circumstances, the twinges of adversity, the spur of slights and taunts in early years, are needed to evoke that ruthless fixity of purpose and tenacious wit without which great actions are seldom accomplished.

I've never made a mistake. I've only learned from experience.

There is great value in disaster. All our mistakes are burned up. Thank God we can start a new.

The biggest mistake Yoko and I made... was allowing ourselves to become influenced by the male-macho 'serious revolutionaries,' and their insane ideas about killing people to save them from capitalism and/or communism (depending on your point of view). We should have stuck to our own way of working for peace: bed-ins, billboards, etc.