Plan for the worst, hope for the best

"Plan for the worst, hope for the best." - Lee Child, probably.

It's good to be prepared, but don't be tormented by the thought.

Other similar thoughts:

"I never leave home in high spirits because nothing would be more depressing than leaving home in high spirits and getting hit by a bus on the next block." - Thoughts kept

"Always expect the worst. If the worst happens, you won't be disappointed. If the best happens, awesome!" - Unknown

"Expect the worst and you'll never be let down." - Unkown