Optimism is a kind of heart stimulant - the digitalis of failure.

Optimism is a kind of heart stimulus, the digitalis of failure.

A failure is a man who has blundered but is not able to cash in the experience.

Failure / The man who can tell others what to do and how to do it, but never does it himself.

There is no failure except in no longer trying.

An impulse toward ourselves through the heart of another