Translation: I don't know the truth without touching the reality, and I don't know the difficulty without doing it on the spot. How can we know without practice? Looking through the map of Wuyue Mountain and thinking that you know this mountain, you might as well go up the mountain as a firewood collector. Talking about the vastness of the sea and thinking that you know the sea, it is better to be a maritime businessman and have a look; Knowing the recipes of all kinds of delicious food, thinking that you know it is delicious, is actually not as good as the taste of a chef.

Original: If you know it, it will be difficult to follow suit. If you can't, who knows? Put a picture of five mountains, thinking that knowing mountains is not as good as a woodcutter's foot; Talking about the vastness of the sea is not as good as peeking at the guests; It is better to know the taste of eight treasures than to taste them.

Extended data:

Mozi opposes the theory of "being born with knowledge", as well as "pedantic talk" and "metaphysical reason" divorced from reality, and holds that human knowledge is acquired through practice.

Mo Mo also highlights the universality and changeable evolution of contradictions. It says that everything in the world must be right, there must be a right, there must be a Lord and a subsidiary, and power is independent. It believes that contradictions are contradictory and mutually transformed, which causes the movement, change and development of things and remains unchanged.