Who said "The strength of a nation is in its children."?

This quote is attributed to Harry Truman.

The strength of a nation is in its children. - Harry Truman

"The strength of a nation is in its children."

Harry Truman

U.S. President American 1884–1972

"The buck stops here."

"If you can't stand the heat, get out of the kitchen."

"I never give them hell. I just tell the truth, and they think it is hell."

"A politician is a fellow who will lay down your life for his country."