Attempt the end and never stand to doubt; Nothing's so hard, but search will find it out.

It's a little like wrestling a gorilla. You don't quit when you're tired, you quit when the gorilla is tired.

Stubbornly persist, and you will find that the limits of your stubbornness go well beyond the stubbornness of your limits.

Success is a little like wrestling a gorilla. You don't quit when you're tired. You quit when the gorilla is tired.

The flower that follows the sun does so even in cloudy days

Welcome maids of honour, / You do bring / In the Spring; / And wait upon her.