We may know ourselves, and yet even with all the efforts we make, we do not know ourselves. We know our fellowman, and yet we do not know him, because we are not a thing, and our fellowman is not a thing. The further we reach into the depths of our being, on someone else's being, the more the goal of knowledge eludes us.

In our enthusiasm to dominate nature and to produce more material good - goods - we have transformed means into ends.

The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.

Politics and religious leaders [are hindered] by their egotism.

We must make a decision of values.

The essential difference between the unhappy, neurotic type person and him of great joy is the difference between get and give.

While every human being has a capacity for love, its realization is one of the most difficult achievements.