What vast additions to the ...

What vast additions to the conveniences and comforts of living might mankind have acquired, if the money spent in wars had been employed in works of public utility; what an extension of agriculture even to the tops of our mountains; what rivers rendered navigable, or joined by canals; what bridges, aqueducts, new roads, and other public works, edifices, and improvements might not have been obtained by spending those millions in doing good, which in the last war have been spent in doing mischief.
What vast additions to the conveniences and comforts of living might mankind have acquired, if the money spent in wars had been employed in works of public utility; what an extension of agriculture even to the tops of our mountains; what rivers rendered navigable, or joined by canals; what bridges, aqueducts, new roads, and other public works, edifices, and improvements might not have been obtained by spending those millions in doing good, which in the last war have been spent in doing mischief.

Quotes from the same author

One today is worth two tomorrows.
The doorstep to the temple of wisdom is a knowledge of our own ignorance.
Watch the little things; a small leak will sink a great ship.
Honesty is the best policy.
Dost thou love life? Then do not squander time, for that is the stuff life is made of.