You have to move quicker than that crab.

5 seconds sound clip from the Disciple of Shaolin Master movie soundboard.

You can hear this line at 01:02:50 in the DVD version of the movie.

Quote context

[...]

- Flying crane. Change at the belly and lower targets.

- The final kick is aimed at the enemy's waist. Then his head.

- Your Kung Fu is most proficient. You have become swift, powerful, and hard.

- But you still have a lot to learn about concentration. Because whatever happens in a fight, you have to keep calm, you mustn't lose your concentration.

- Thank you for all you've taught me.

- You have to move quicker than that crab.

- Then pick it up and turn it over, and it's quite powerless.

- Nothing lasts forever in life, tomorrow you're to leave the mountain.

- No, I don't want to leave you, can't I stay here with you Abbot and guard the treasure?

- I told you, you cannot stay here with me, nothing lasts forever.

[...]