Here are some statements/quotes:

1. A flower blossoms with its natural beauty and smell whether anybody notices it or not.
2. I want to sing like the birds sing, not worrying about who hears or what they think – Rumi.
3.

– Gita

The above implies that you control your actions, but never the fruits of the actions.  Let not the fruits of actions be your motive, nor let your attachment towards something be a cause of inaction.