According to the dictionary, assertiveness is 'daring to be yourself'. That is a very broad concept. According to others, assertiveness is 'having self-confidence' and 'daring to stand up for yourself'. It does not mean that you only think about yourself: assertiveness is also about accepting others as they are. The bottom line is that you don't let people walk all over you, command respect, but at the same time treat others with respect, both verbally and non-verbally, and therefore feel more comfortable and free can live. By being clear and speaking your mind, others can empathize with you move and take care of you.