Who said "Men are not islands, though some of us try very hard to be."?

This quote is attributed to Ove.

Men are not islands, though some of us try very hard to be. - Ove

"Men are not islands, though some of us try very hard to be."

Ove Solitude

Character in A Man Called Ove

"A man can do a lot of things if he doesn't believe in himself."

"One shouldn't spend one's life on assumptions."

"People are basically decent, but there are a lot of them."

"Everything would be better if more people understood that sometimes you just have to let things be."

"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."