What episode is Wei Zi's blindness?

The classic lines of Wei Zi's blindness are as follows:

If I can't see again, I would rather die than live. If I can't see, what is the meaning of this world to me?

I can't see your face, your eyes, the way you look at me, Dali with flowers and water in every family, the paradise in our dreams, and our faint valley! I don't want it!

Wei Zi's other classic lines

1, you watched the snowy moon with her all night, and talked about philosophy from poems and songs. I haven't even seen the snow and the moon with you, nor have I talked about the philosophy of life from poems and songs.

2, yes, the world is big, there is no place that really belongs to me, but I still know what doesn't belong to me!

I have waited all my life, hated all my life, thought all my life and complained all my life, but I still thank God for letting her have this person who can wait, hate, think and complain.

4, the mountain has no edges, heaven and earth are in harmony, dare to be with you.