Any plan is bad that cannot be changed.

Failing to plan is planning to fail.

It’s an ill plan that cannot be changed.

If you deal in camels, make the doors high.

The best plans of men and mice often go awry.

If you don’t have a plan for yourself, you’ll be part of someone else’s.

Do not cut down the tree that gives you shade.

Think of the going-out before you enter.

It is no use to wait for your ship to come in unless you have sent one out.