Time tries all.

Over time, people, plans, and beliefs are tested by experience. What seems strong, true, or reliable at first may prove otherwise when it faces changing circumstances.

The saying counsels patience in judgment rather than quick confidence. Time can reveal qualities and consequences that are not clear at the beginning of a situation.

Used when someone says that a person, decision, or idea should be judged after it has faced experience and changing circumstances, rather than only by first impressions.