You have it easily in your power to increase the sum total of this world's happiness now. How? By giving a few words of sincere appreciation to someone who is lonely or discouraged. Perhaps you will forget tomorrow the kind words you say today, but the recipient may cherish them over a lifetime. 여러분은 여러분의 힘으로 이 세상의 총량을 쉽게 증가시킬 수..