Who said "Solitude is not loneliness; it is communion with self."?

This quote is attributed to William Astor.

Solitude is not loneliness; it is communion with self. - William Astor

"Solitude is not loneliness; it is communion with self."

William Astor Solitude

Merchant & Real Estate American 1763–1848

"Wealth is the means, not the end."

"The only true legacy is the impact we leave on others."

"Fortune favors those who dare to act."

"A man's character is his fate."

"Sometimes being the best means being the loneliest."

"Solitude gives us time to reflect on what matters"

"I'm not good with people, never have been."

"I feel like I'm disappearing."