A youth is to be regarded with respect. How do we know that his future will not be equal to our present? If he reach the age of forty or fifty, and has not made himself heard of, then indeed he will not be worth being regarded with respect.
后生可畏，焉知来者之不如今也？四十、五十而无闻焉，斯亦不足畏也已。
Source: The Analects, Zi Han IX, Chapter 23
Author: Confucius
