Use reasoning to lead to the answer of the following question:
The man enjoyed sitting quietly by himself, he felt it helped him come up with his best what about things?\nOptions:\n- anxiety\n- happiness\n- insights\n- inspiration\n- wisdom

insights
Sitting quietly you can dwell upon insights about things.

When we sit quietly, it is best time when we can come up with the best insights.

.

Final answer: insights