The fool doth think he is wise, but the wise man knows himself to be a fool. - William Shakespeare

The lunatic, the lover, and the poet
Are of imagination all compact:
One sees more devils than vast hell can hold,
That is, the madman: the lover, all as frantic,
Sees Helen's beauty in a brow of Egypt:
The poet's eye, in a fine frenzy rolling,
Doth glance from heaven to earth, from earth to heaven,
And as imagination bodies forth
The forms of things unknown, the poet's pen
Turns them to shapes and gives to airy nothing
A local habitation and a name.

You lie, in faith; for you are call'd plain Kate,
And bonny Kate and sometimes Kate the curst;
But Kate, the prettiest Kate in Christendom
Kate of Kate Hall, my super-dainty Kate,
For dainties are all Kates, and therefore, Kate,
Take this of me, Kate of my consolation;
Hearing thy mildness praised in every town,
Thy virtues spoke of, and thy beauty sounded,
Yet not so deeply as to thee belongs,
Myself am moved to woo thee for my wife.

It is excellent To have a giant's strength But it is tyrannous To use it like a giant