Who said "To be a person is to be in relation to another person."?

This quote is attributed to Buber, Martin.

To be a person is to be in relation to another person. - Buber, Martin

"To be a person is to be in relation to another person."

Buber, Martin Relationships

Philosopher-Theologian Austrian-Jewish 1878–1965

"All real living is meeting."

"The I-Thou relationship is the primary word."

"When two people relate to each other authentically and humanly, God is the electricity that surges between them."

"The world is not comprehensible, but it is embraceable: through embracing, taking into our arms."

"The key to a happy marriage is communication."

"Marriage is about compromise and understanding."

"Life's greatest treasures are relationships."

"Trust is a luxury I can't afford."