Envy, jealousy, ambition, any kind of greed are passions; love is an action, the practice of human power, which can be practiced only in freedom and never as a result of compulsion. Love is an activity, not a passive affect; it is a "standing in," not a "falling for." In the most general way, the active character of love can be described by stating that love is primarily giving, not receiving.

What most people in our culture mean by being lovable is essentially a mixture between being popular and having sex appeal.

Happiness is the indication that man has found the answer to the problem of human existence: the productive realization of his potentialities and thus, simultaneously, being one with the world and preserving the integrity of his self. In spending his energy productively he increases his powers, he "burns without being consumed."

Only the person who has faith in himself is able to be faithful to others.

Man's main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.

Care and responsibility are constituent elements of love, but without respect for and knowledge of the beloved person, love deteriorates into domination and possessiveness. Respect is not fear and awe; it denotes, in accordance with the root of the word (respicere = to look at), the ability to see a person as he is, to be aware of his individuality and uniqueness. To respect a person is not possible without knowing him; care and responsibility would be blind if they were not guided by the knowledge of the person's individuality.

Temperament refers to the mode of reaction and is constitutional and not changeable; character is essentially formed by a person's experiences, especially of those in early life, and changeable, to some extent, by insights and new kinds of experiences. If a person has a choleric temperament, for instance, his mode of reaction is "quick and strong." But what he is quick or strong about depends on his kind of relatedness, his character. If he is a productive, just, loving person he will react quickly and strongly when he loves, when he is enraged by injustice, and when he is impressed by a new idea. If he is a destructive or sadistic character, he will be quick and strong in his destructiveness or in his cruelty. The confusion between temperament and character has had serious consequences for ethical theory. Preferences with regard to differences in temperament are mere matters of subjective taste. But differences in character are ethically of the most fundamental importance.

The quest for certainty blocks the search for meaning. Uncertainty is the very condition to impel man to unfold his powers.

Man's life cannot "be lived" by repeating the pattern of his species; he must live. Man is the only animal that can be bored, that can be discontented, that can feel evicted from paradise. Man is the only animal for whom his own existence is a problem which he has to solve and from which he cannot escape. He cannot go back to the prehuman state of harmony with nature; he must proceed to develop his reason until he becomes the master of nature, and of himself.

If the individual realizes his self by spontaneous activity and thus relates himself to the world, he ceases to be an isolated atom; he and the world become part of one structuralized whole; he has his rightful place, and thereby his doubt concerning himself and the meaning of life disappears. This doubt sprang from his separateness and from the thwarting of life; when he can live, neither compulsively nor automatically but spontaneously, the doubt disappears. He is aware of himself as an active and creative individual and recognizes that there is only one meaning of life: the act of living itself.