Man has the ability to choose and make decisions in life as a whole and can direct his life in a way that suits him. For example, he can choose what to eat and what clothes to wear. This feature separates man from other animals.
What makes man truly a human? To be truly human, one must have a concrete body that has an appetite like that of an animal to desire something for its satisfaction and survival - also known as instinct. Jostein Gaardner once wrote "When these basic needs have been satisfied, will there be something that everybody needs? Man cannot live by bread alone. Of course everyone needs food, but there is something else, and that is to figure out who we are and why we are here."
Source: google
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