Auguries of Innocence by William Blake.

Part 5 of 7.

He who

mocks the Infant's Faith
Shall be mock'd in Age & Death.
He who shall teach the Child to Doubt
The rotting Grave shall ne'er get out.
He who respects the Infant's faith
Triumph's over Hell & Death.
The Child's Toys & the Old Man's Reasons
Are the Fruits of the Two seasons.
The Questioner, who sits so sly,
Shall never know how to Reply.
He who replies to words of Doubt
Doth put the Light of Knowledge out.
The Strongest Poison ever known
Came from Caesar's Laurel Crown.
Nought can deform the Human Race
Like the Armour's iron brace.
When Gold & Gems adorn the Plow
To peaceful Arts shall Envy Bow.
A Riddle or the Cricket's Cry
Is to Doubt a fit Reply.