Who said "To try to make the world better is to be naive."?

This quote is attributed to Russell, Bertrand.

To try to make the world better is to be naive. - Russell, Bertrand

"To try to make the world better is to be naive."

Russell, Bertrand

Philosopher-Logician British 1872–1970

"Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric."

"The only thing that will redeem mankind is cooperation."

"What is wanted is not the will to believe, but the wish to find out, which is the exact opposite of the will to believe."

"Fear is the main source of superstition, and one of the main sources of cruelty."