Care is concerned with a certain anticipation or awaiting, that is, a certain relation to the future. I await something from the future that affects me. It is not something that I am but rather something I have to deal with.
Care is more basic than any theory or practice, any willing or wishing, any drive or urge. It is a priori, or what is presupposed in the most primordial sense.
Care is a purely ontological-existential concept, excluding any ontically meant tendency of being, such as worry or carefreeness.
Care is the sin-qua-non of being, for if there is no one to whom entities can make a difference, then Being cannot take place, or be given to anyone.
16 concepts in this pillow book.