Who said "We must maintain our optimism about human progress."?

This quote is attributed to Bill Gates.

We must maintain our optimism about human progress. - Bill Gates

"We must maintain our optimism about human progress."

Bill Gates Inspiration

Software Magnate American Born 1955 (age 71)

"The world is not fair; get used to it."

"Life is not fair; get over it."

"If you are born poor it is not your mistake, but if you die poor it is your mistake."

"Don't compare yourself with anyone in this world. If you do so, you are insulting yourself."

"The best part of living is knowing you survived."

"The world needs heroes."

"Life is too short to live poorly."

"I'd rather be an optimist and be wrong than a pessimist and be right"