His heroic deed saved the child from drowning in the river.
His deed of kindness will never be forgotten.
Is his sincerity proven by his deeds?
It is possible to perform a good deed only for a man of nice mind.
A scientist discovers a new plant in a tropical rainforest during a three-month research trip and carefully documents its features by taking photographs and collecting samples to study back at the university lab where her team analyzes the plant's unique properties and compares them with known species before confirming that it is indeed a new discovery and publishing the findings in a respected scientific journal.