Tao Te Ching · Ch. 35

執大象,天下往。往而不害,安平太。樂與餌,過客止。道之出口,淡乎其無味,視之不足見,聽之不足聞,用之不足既。

Zhí dà xiàng, tiān xià wǎng. Wǎng ér bù hài, ān píng tài. Lè yǔ ěr, guò kè zhǐ. Dào zhī chū kǒu, dàn hū qí wú wèi, shì zhī bù zú jiàn, tīng zhī bù zú wén, yòng zhī bù zú jì.

Hold to the great image, and all under heaven will come. They come, and no harm is done; there is peace, security, and great tranquility. Music and fine food may make passing travelers stop, but the Tao — spoken, it is bland and flavorless; looked at, it is not enough to see; listened to, it is not enough to hear; yet used, it is inexhaustible.

— Tao Te Ching 35

Source: Wang Bi edition (Chinese) + Hanyu Pinyin transliteration