I never found a companion that was so companionable as solitude.
Solitude is painful when one is young, but delightful when one is more mature.

Solitude is fine but you need someone to tell that solitude is fine.
In solitude, the mind gains strength and learns to lean upon itself.
The greatest thing in the world is to know how to belong to oneself.
Loneliness is the poverty of self; solitude is the richness of self.