Moral reasoning and profit as one calculation, not a trade-off — from a man who organised hundreds of companies and refused to own them.
Concentrate on one enterprise, enlist people abler than yourself, know your costs cold, and build when rivals are running scared.
The Athenian gadfly who knew only that he knew nothing — and asked the questions that got him killed.
The immigrant clerk who out-wrote and out-worked a continent into a nation, and built the machinery that let it borrow.