Your most unhappy customers are your greatest source of learning.

We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten.

Success is a lousy teacher. It seduces smart people into thinking they can't lose.

If you are born poor it's not your mistake, but if you die poor it's your mistake.

It's fine to celebrate success, but it is more important to heed the lessons of failure.

Celebrate your successes. Find some humor in your failures. Don't take yourself so seriously.

-- Sam Walton

My hairline is not receding. I am advancing.

-- Masayoshi Son

Madam, I have come from a country where people are hanged if they talk.

-- Leonhard Euler

My bathwater is not dirty, it is just slightly used.

-- Emmy Noether

We can lick gravity, but sometimes the paperwork is overwhelming.

-- Wernher von Braun

Art is whatever the artist says it is.

-- Marcel Duchamp