I always like these:
Deep Thoughts - Jack Handey
Today I accidentally stepped on a snail on the sidewalk in front of our house. And thought, I too am like that snail. I build a defensive wall around myself, a "shell" if you will. But my shell isn't made out of a hard, protective substance. Mine is made out of tinfoil and paper bags.
When I think back on all the blessings I have been given in my life, I can't think of a single one, unless you count that rattlesnake that granted me all those wishes.
If you ever go temporarily insane, don't shoot somebody, like a lot of people do. Instead, try to get some weeding done, because you'd really be surprised.
You can't tell me that cowboys, when they're branding cattle, don't sort of "accidentally" brand each other every once in a while. It's their way of letting off stress.
If there was a big gardening convention, and you got up and gave a speech in favor of fast-motion gardening, I bet you would get booed off the stage. They're just not ready.
Instead of raising your hand to ask a question in class, how about individual push buttons on each desk? That way, when you want to ask a question, you just push the button and it lights up a corresponding number on a tote board at the front of the class. Then all the professor has to do is check the lighted number against a master sheet of names and numbers to see who is asking the question.