man of action
Noun
Meaning
someone inclined to act first and think later
Source: WordNetSynonyms
Antonyms
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Examples
Every man of action has a strong dose of egoism, pride, hardness, and cunning. But all those things will be regarded as high qualities if he can make them the means to achieve great ends.
The man of action is not the headstrong fool who rushes into danger with no thought for himself, but the man who puts into practice the things he knows.
A man who waits to believe in action before acting is anything you like, but he's not a man of action.
A man of action forced into a state of thought is unhappy until he can get out of it.
A leader or a man of action in a crisis almost always acts subconsciously and then thinks of the reasons for his action.
I would say act like a man of thought and think like a man of action.