On getting the right balance between action and acceptance:

Anas ibn Malik reported: A man said, “O Messenger of Allah, should I tie my camel and trust in Allah, or should I leave her untied and trust in Allah?”

The Prophet, peace and blessings be upon him, said, “Tie your camel and trust in Allah.”

Imam Abu `Isa Muhammad at-Tirmidhi, Sunan al-Tirmidhī, 2517