To read too many books is harmful.

Swollen in head, weak in legs, sharp in tongue but empty in belly.

There is in fact no such thing as art for art's sake, art that stands above classes, art that is detached from or independent of politics. Proletarian literature and art are part of the whole proletarian revolutionary cause.

Letting a hundred flowers blossom and a hundred schools of thought contend is the policy for promoting the progress of the arts and the sciences and a flourishing culture in our land.

The enemy advances, we retreat.
The enemy camps, we harass.
The enemy tires, we attack.
The enemy retreats, we pursue..