When you realize you've made a mistake, take immediate steps to correct it.

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.

Learn from every mistake, because every experience, particularly your mistakes, are there to teach you and force you into being more who you are.

Even a mistake may turn out to be the one thing necessary to a worthwhile achievement.

The only real mistake is the one which we learn nothing.

If you don't give people a chance to fail... you won't innovate... if you wanna be an innovative company allow people to make mistakes.