Who said "A man without conviction is merely a shadow."?

This quote is attributed to Lewis Strauss.

A man without conviction is merely a shadow. - Lewis Strauss

"A man without conviction is merely a shadow."

Lewis Strauss Courage

"I have a memory, and I intend to use it."

"The world is not kind to those who hesitate."

"Power is not given; it is taken."

"History will judge us all eventually."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."