The more powerful and original a mind, the more it will incline towards the religion of solitude.
Solitude is the profoundest fact of the human condition. Man is the only being who knows he is alone.
I love to be alone. I never found the companion that was so companionable as solitude.
I live in that solitude which is painful in youth, but delicious in the years of maturity.
The worst solitude is to have no real friendships.
The good and the wise lead quiet lives.
Whosoever is delighted in solitude, is either a wild beast or a god.
Language... has created the word "loneliness" to express the pain of being alone. And it has created the word "solitude" to express the glory of being alone.
Conversation enriches the understanding; but solitude is the school of genius.
If you're lonely when you're alone, you're in bad company.