Hom. IL. v. 403

If thou art tempted by a thought of ill,
Crave not too soon for victory, nor deem
Thou art a coward if thy safety seem
To spring too little from a righteous will;
For there is nightmare on thee, nor until
Thy soul hath caught the morning's early gleam
Seek thou to analyze the monstrous dream
By painful introversion; rather fill
Thine eye with forms thou knowest to be truth;
But see thou cherish higher hope than this,-
hope hereafter that thou shall be fit
Calm-eyed to face distortion, and to sit
Transparent among other forms of youth
Who own no impulse save to God and bliss.