“If you can't imitate him, don't copy him.”

Sec. 71
Some Thoughts Concerning Education (1693)
Context: You must do nothing before him, which you would not have him imitate. If any thing escape you, which you would have pass as a fault in him, he will be sure to shelter himself under your example, and shelter himself so as that it will not be easy to come at him, to correct it in him the right way.

Quote of Gainsborough in a Letter to John Henderson, 27th June 1773
1770 - 1788

Introduction, p. 27
Commentary, P. Vergili Maronis Opera, Volume II (1863)

Quote reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 364

Swift's Epitaph http://poetry.poetryx.com/poems/1586/.
The Winding Stair and Other Poems (1933)
Context: Swift has sailed into his rest;
Savage indignation there
Cannot lacerate his breast.
Imitate him if you dare,
World-besotted traveller; he
Served human liberty.

"Snapshots" (p. 135)
Private Lives in the Imperial City (1979)

in The Erasmus Reader (1990), p. 130.
Ciceronianus (1528)

Cassandra (1860)
Context: The great reformers of the world turn into the great misanthropists, if circumstances or organisation do not permit them to act. Christ, if He had been a woman, might have been nothing but a great complainer. Peace be with the misanthropists! They have made a step in progress; the next will make them great philanthropists; they are divided but by a line.
The next Christ will perhaps be a female Christ. But do we see one woman who looks like a female Christ? or even like "the messenger before" her "face", to go before her and prepare the hearts and minds for her?
To this will be answered that half the inmates of Bedlam begin in this way, by fancying that they are "the Christ."
People talk about imitating Christ, and imitate Him in the little trifling formal things, such as washing the feet, saying His prayer, and so on; but if anyone attempts the real imitation of Him, there are no bounds to the outcry with which the presumption of that person is condemned.