Lun Yu – Les Entretiens de Confucius

Le Maître dit : « Étudiez, comme si vous aviez toujours à acquérir ; et craignez de perdre ce que vous avez acquis. » Celui qui ne progresse pas chaque jour recule chaque jour. (Tchou Hsi)

Couvreur VIII.17.

With what earnestness and continuousness learning should be pursued.
The Master said, "Learn as if you could not reach your object, and were always fearing also lest you should lose it."

Legge VIII.17.

The Master said, 'Even with a man who urges himself on in his studies as though he was losing ground, my fear is still that he may not make it in time.'

Lau [8:17]