Who said "Fear is the enemy of progress and clarity of thought."?

This quote is attributed to Lewis Strauss.

Fear is the enemy of progress and clarity of thought. - Lewis Strauss

"Fear is the enemy of progress and clarity of thought."

Lewis Strauss Fear

"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."

"Face your fears with courage."

"You can't live your life in fear."

"Snakes. Why'd it have to be snakes?"

"Fear is just another obstacle to overcome."