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Insanity is hereditary; you get it from your children.

Insanity - a perfectly rational adjustment to an insane world.

Control your life through insanity.

Insanity in individuals is something rare - but in groups, parties, nations and epochs, it is the rule.

In individuals, insanity is rare; but in groups, parties, nations and epochs, it is the rule.

I've had my moments of insanity. But there is a certain responsibility to set proper examples for your children, and that influences your choices in every aspect of your life.

I am told that the clinical definition of insanity is the tendency to do the same thing over and over again and expect different results.

I voluntarily inflicted a certain level of insanity on myself.

Sometimes you have to exercise your insanity, to really make it strong.

Insanity: doing the same thing over and over again and expecting different results.