Keyword: Insanity

Insanity is hereditary – you get it from your children.

(1911 – 1980) humorist, writer, television host & journalist

Insanity: Knowing that what you’re doing is completely idiotic, but still, somehow, you just can’t stop it.

If we couldn't laugh, we would all go insane.

(1946 – ) singer, songwriter, author & businessman

Insanity: Grounds for divorce in some states; grounds for marriage in all

Last night I was having dinner with Charles Manson, and in the middle of dinner he turned to me and said, "Is it hot in here, or am I crazy?"

(1955 – ) American stand-up comedian & actor

Insanity runs in my family. It practically gallops.

(1904 – 1986) English-American actor

I hate to advocate drugs, alcohol, violence, or insanity to anyone, but they’ve always worked for me.

(1937 – 2005) journalist & author

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

(1879 – 1955) German-born physicist

There's a fine line between genius and insanity and I have erased this line.

(1906 – 1972) pianist, composer, author, comedian & actor

What garlic is to salad, insanity is to art.

(1848 – 1907) Irish-born American sculptor

Insanity doesn’t run in my family; it gallops.

(1904 – 1986) English-American actor

There is a thin line between genius and insanity, and in Larry's case it was sometimes so thin you could see him drifting back and forth.

(1906 – 1991) American baseball player, coach & manager

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

(1844 – 1900) German philosopher

Insanity: a perfectly rational adjustment to the insane world.

(1927 – 1989) Scottish psychiatrist

Honesty is the best policy, but insanity is a better defense.

(1945 – 2010) American comedian & actor

Insane people are always sure that they are fine; it is only the sane people who are willing to admit that they are crazy.

(1941 – 2012) American novelist, producer, screenwriter & director