Laugh and the world laughs with you, weep and you weep alone.
Hard cases make bad law Link to proverb.
A little of what you fancy does you good Link to proverb.
March comes in like a lion, and goes out like a lamb.
Cheats never prosper.
Genius is one percent inspiration, ninety-nine percent perspiration Link to proverb.
It's easy to be wise after the event.