We’re affected by proverbs, quotes, aphorisms, and slogans…and not always for the good.
We might even be affected more by those than by tomes. For example, might the slogan, “Do random acts of kindness” have caused more good acts than have 1,000 sermons?
In any event, slogans or their for more formal analogue, proverbs, certainly have impact.
In my PsychologyToday.com article today, I vote for the worthiest and silliest.