Homer thinks back to when he sold all his stock to buy a bowling ball on "Four Regrettings and a Funeral." This is a scene from that episode.
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Look out! The robots are on the attack in this scene from The Simpsons.
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A picture of Mr. Montgomery Burns, Homer's boss and the owner of the Springfield power plant.
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The Simpsons Quotes

Homer: (Wearing glasses) The sum of the square roots of any two sides of an isosceles triangle is equal to the square root of the remaining side!
Man: (From inside a bathroom stall.) That's a right triangle, you idiot!
Homer: D'oh!

Homer: Aw, twenty dollars? I wanted a peanut!
Homer's Brain: Twenty dollars can buy many peanuts.
Homer: Explain how!
Homer's Brain: Money can be exchanged for goods and services.