Art is long, and time is fleeting.

—— Longfellow, American poet

（艺术是永恒的，时间则是瞬息即逝的。）

Art is much less important than life, but what a poor life without it!

—— Robert Motherwell, American painter

（艺术虽然不如生命重要，但没有艺术的生活是贫瘠的。）

Art is the lie that reveals the truth.

—— Pablo Picasso, Spanish painter

（美术是揭示真理的谎言。）

这些谚语从不同角度表达了艺术的独特价值和重要性。希望这些对你有所帮助。