Here’s the most recent guest bleg from Fred Shapiro, editor of the Yale Book of Quotations. His past blegs can be found here.
Last week about 100 people responded to my blegging for examples of famous computer proverbs. In general, proverb dictionaries are filled with traditional sayings like “A stitch in time saves nine,” ignoring modern proverbs. Yet modern proverbs proliferate constantly and are among our most colorful and popular expressions: “Sh*t happens,” “It takes a village to raise a child,” “Never criticize anybody until you have walked a mile in his shoes,” “The customer is always right,” “Different strokes for different folks,” “The opera ain’t over until the fat lady sings,” “There ain’t no such thing as a free lunch,” “If anything can go wrong, it will.”
For a forthcoming book of modern proverbs, I would welcome suggestions of additional contemporary proverbs of all kinds.

I thought I made this one up but I’ve heard other people use it who don’t know me. I must have heard it somewhere. But I’d like to take credit. “If at first you don’t suceed, change the definition.”
And… my favorite Gonzo quote:
“Call on God, but row away from the rocks.” – Hunter S. Thompson
Famous last words of Lieutenant Jim Dangle:
“He loved it…”
“Fa(ir|re) is what you pay to ride a bus.”
“No good deed goes unpunished.”
“Use the BFH*”
*Big, Fancy Hammer
“There’s no such thing as free lunch.”
“The poison is the dose.”
An old favorite is, “Those who can, do. Those who can’t, teach.”
However, I prefer it’s updated version:
“Those who can, do. Those who can’t, teach. Those who can’t teach, teach law.”
A good one for anybody wondering why they are happy:
“The surest way of spoiling a pleasure is to start examining your satisfaction.” – C. S. Lewis
“When all you have is a hammer, everything looks like a nail”