If at First You Don’t Succeed, Try, Try Again
(persevere until you reach your goal)

He Who Hesitates Is Lost
(a person who doesn’t act decisively is unlikely to succeed)

Forewarned is forearmed
(being warned about something before it happens allows a person to prepare for it)

The First Step Is Always the Hardest
(the most difficult part of accomplishing something is getting started)

Where There’s Smoke, There’s Fire
(when there is evidence of a problem, there probably is a problem)