Individuality
Part of speech: noun
Definition: The characteristics which contribute to the differentiation or distinction of someone or something from a group of otherwise comparable identity. A person.
Example sentence: The deepest problems of modern life derive from the claim of the individual to preserve the autonomy and individuality of his existence in the face of overwhelming social forces, of historical heritage, of external culture, and of the technique of life.
Identity
Part of speech: noun
Definition: The sameness some individuals share to make up the same kind or universal.The difference or character that marks off an individual from the rest of the same kind, selfhood.A name or persona—the mask or appearance one presents to the world—by which one is known.Knowledge of who one is.Any function which maps all elements of its domain to themselves.An element of an algebraic structure which, when applied to another element under an operation in that structure, yields this, second element.
Example sentence: Sketching is almost everything. It is the painter's identity, his style, his conviction, and then color is just a gift to the drawing.