There are two kinds of people in the world, one kind of people waste their years; the other kind of people live a meaningful life. In the eyes of the first type of person, life is a sleep. If this sleep, in his opinion, is sleeping on a soft and warm bed, then he will be very satisfied; in the eyes of the second type of person, it can be said that , life is about building great achievements...people enjoy their own happiness in this achievement.

-- Belinsky

Although our lives are short and small, everything great is created by human hands. It is his supreme happiness to be aware of this noble task of his while he is alive.

——Turgenev

Objective opinions are beneficial to me in two aspects. On the one hand, they make me realize my mistakes, and on the other hand, they make me realize what most people see. One sees better.

——Descartes