It's simple to be wise. Just think of something stupid to say and say the opposite.

Sam Levenson
Profession: Humorist
Nationality: American
Some suggestions for you :
The simplest toy, one which even the youngest child can operate, is called a grandparent.
Siblings: children of the same parents, each of whom is perfectly normal until they get together.
You must pay for your sins. If you have already paid, please ignore this notice.
Lead us not into temptation. Just tell us where it is; we'll find it.
The reason grandparents and grandchildren get along so well is that they have a common enemy.