Arms on armour clashing bray'd

Horrible discord, and the madding wheels

Of brazen chariots rag'd: dire was the noise

Of conflict.

John Milton (1608-1674): Paradise Lost. Book vi. Line 209.

From hence, let fierce contending nations know

What dire effects from civil discord flow.

Joseph Addison (1672-1719): Cato. Act v. Sc. 4.

All nature is but art, unknown to thee;

All chance, direction, which thou canst not see;

All discord, harmony not understood;

All partial evil, universal good;

And spite of pride, in erring reason's spite,

One truth is clear, Whatever is, is right.

Alexander Pope (1688-1744): Essay on Man. Epistle i. Line 289.