What are your favorite/most interesting sayings, aphorisms, metaphors, similes,etc.

When I first became a superintendent, the president of the company came out to the job. He said" you are going to screw something up, trying to come up with a faster/cheaper way to build it. Don't feel bad when it doesn't work like you thought. I screw things up everyday. But, if you screw the samething up twice; we will be having a talk".

Best advice I ever got.