Solitude vivifies; isolation kills.
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.
Loneliness expresses the pain of being alone and solitude expresses the glory of being alone.

We're born alone, we live alone, we die alone. Only through our love and friendship can we create the illusion for the moment that we're not alone.
Solitude is independence.
In solitude, the mind gains strength and learns to lean upon itself.
I care for myself. The more solitary, the more friendless, the more unsustained I am, the more I will respect myself.
The greatest thing in the world is to know how to belong to oneself.
There is a fellowship more quiet even than solitude, and which, rightly understood, is solitude made perfect.
Loneliness is the poverty of self; solitude is the richness of self.
Solitude is the place of purification.

Solitude is a silent storm that breaks down all our dead branches; yet it sends our living roots deeper into the living heart of the living earth.
I live in that solitude which is painful in youth, but delicious in the years of maturity.