Who said "It is a good thing to rely on yourself"?

This quote is attributed to Salvor Hardin.

It is a good thing to rely on yourself - Salvor Hardin

"It is a good thing to rely on yourself"

Salvor Hardin Strength

Character in Foundation

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"Violence is the last refuge of the incompetent"

"It is the chief characteristic of the religion of science that it works"

"Found a religion? It's the only way to keep them quiet"

"Violence is the last refuge of the incompetent"

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."