He Hangs Between; In Doubt to Act, or Rest; In Doubt to Deem Himself a God, or Beast

 True Wit is Nature to advantage dress'd

What oft was thought, but ne'er so well express'd;

Something whose truth convinced at sight we find,

That gives us back the image of our mind.

from Essay on Man, by Alexander Pope: 

Know, then, thyself, presume not God to scan;

The proper study of mankind is man.

Placed on this isthmus of a middle state,

A being darkly wise, and rudely great:

With too much knowledge for the sceptic side,

With too much weakness for the stoic’s pride,

He hangs between; in doubt to act, or rest;

In doubt to deem himself a god, or beast;

In doubt his mind or body to prefer;

Born but to die, and reasoning but to err;

Alike in ignorance, his reason such,

Whether he thinks too little, or too much:

Chaos of thought and passion, all confused;

Still by himself abused, or disabused;

Created half to rise, and half to fall;

Great lord of all things, yet a prey to all;

Sole judge of truth, in endless error hurled:

The glory, jest, and riddle of the world!

Alexander Pope (1688-1744)