He that is kind is free, ...

He that is kind is free, though he is a slave; he that is evil is a slave, though he be a king.
He that is kind is free, though he is a slave; he that is evil is a slave, though he be a king.

More phrases

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.
I know but one freedom and that is the freedom of the mind.
 Antoine de Saint-Exupéry
Freedom is not worth having if it does not connote freedom to err.
The amount of happiness that you have depends on the amount of freedom you have in your heart.
 Thích Nhất Hạnh
Without freedom of thought, there can be no such thing as wisdom - and no such thing as public liberty without freedom of speech.

Quotes from the same author

Woman was merely man's helpmate, a function which pertains to her alone. She is not the image of God but as far as man is concerned, he is by himself the image of God.
Woman does not possess the image of God in herself but only when taken together with the male who is her head, so that the whole substance is one image. But when she is assigned the role as helpmate, a function that pertains to her alone, then she is not the image of God. But as far as the man is concerned, he is by himself alone the image of God just as fully and completely as when he and the woman are joined together into one.
He cannot have God for his Father who will not have the Church for his mother.
Man's maker was made man that He, Ruler of the stars, might nurse at His mother's breast; that the Bread might hunger, the Fountain thirst, the Light sleep, the Way be tired on its journey; that Truth might be accused of false witnesses, the Teacher be beaten with whips, the Foundation be suspended on wood; that Strength might grow weak; that the Healer might be wounded; that Life might die.
He was created of a mother whom He created. He was carried by hands that He formed. He cried in the manger in wordless infancy. He, the Word, without whom all human eloquence is mute.