Fame is a vapor; popularity an accident; the only earthly certainty is oblivion. - Mark Twain
The knowing, I told myself, is only a vapor of the mind, and yet it can wreck havok with one's sanity. - Diane Ackerman
Fame is a vapor, popularity is an accident, riches take wings, those who cheer today may curse tomorrow and only one thing endures - character. - Harry Truman