Youth is a brief dream; once you wake up, it has already vanished without a trace. — Shakespeare
Youth is like early spring, like the morning sun, like the budding of a hundred flowers, like a new blade emerging from a whetstone; it is the most precious period of life. To society, youth is like fresh and lively cells in a body. — Chen Duxiu
Youth is not a period of life, but a state of mind. — S.E. Schuman
The fantasies of youth are both passionate and lovely. — Joachim Gaspara
The days of youth pass in the blink of an eye. — Horace
No one feels youth passing, but everyone feels that youth has passed. — Seneca
If youth has any flaw, it is that it passes too quickly. — Robert Lowell
The important thing is not to waste your youth and vitality. — Chekhov
Some people are only half perfect when they are young, while the other half is foolish. The only flaw of youth is that one grows up too quickly. When we have youth, we must use it every day, otherwise, it will soon disappear. — Anonymous