Both had roses red, One enjoyed the beautiful flower bed, Unaware of the thorns, he didn't dread. The other was scared, of the thorns he did dread. Scared, what if he bled? So much on the thorns focused did he, That one day the roses died and he could only see, Lamenting, "I couldn't enjoy their beauty!". The other was content with the roses, he admired them everyday, till one day, they withered away, Alas he got to know of the thorns one day. He smiled at how he didn't know this, And came to realize, That sometimes ignorance is bliss, and it's folly to be wise.
Last two lines were coined by Thomas Gray in his "Ode on a Distant Prospect of Eton College"