“Of the splendid constellation of great names… we admire the living and revere dead far too warmly and too deeply to suffer us sit in judgment on their respective claims to in this or that particular discovery; to balance mathematical skill of one against the experimental dexterity of another, or the philosophical acumen a third. So long as "one star differs from another in glory,"—so long as there shall exist varieties, or even incompatibilities of excellence,—so long will the admiration of mankind be found sufficient for all who merit it.”

1850s, Latter-Day Pamphlets (1850), The Present Time (February 1, 1850)

New Era Community (1926)

Introduction.
An American Bible (1912)
Context: Elbert Hubbard sees, too, that just so long as there is one woman who is denied any right that man claims for himself, there is no free man; that no man can be a superior, true American so long as one woman is denied her birthright of life, liberty and happiness.
He knows that freedom to think and act, without withholding that right from any other, evolves humanity — Therefore he gives his best energy to inspiring men and women to think and to act, each for himself. He pleads for the rights of children, for so-called criminals, for the insane, the weak, and all those who having failed to be a friend to themselves, need friendship most. The Golden Rule is his rule of life.
His work is to emancipate American men and women from being slaves to useless customs, outgrown mental habits, outgrown religion, outgrown laws, outgrown superstitions. He would make each human being rely upon himself for health, wealth and happiness.

The Lost Princess of Oz (1917)
Later Oz novels
Context: Were we all like the Sawhorse, we would all be Sawhorses, which would be too many of the kind. Were we all like Hank, we would be a herd of mules; if like Toto, we would be a pack of dogs; should we all become the shape of the Woozy, he would no longer be remarkable for his unusual appearance. Finally, were you all like me, I would consider you so common that I would not care to associate with you. To be individual, my friends, to be different from others, is the only way to become distinguished from the common herd. Let us be glad, therefore, that we differ from one another in form and in disposition. Variety is the spice of life, and we are various enough to enjoy one another's society; so let us be content.

"Elegy in the Classroom"
Referring to Robert Lowell
To Bedlam and Part Way Back (1960)
Variant: Even so, I must admire your skill.
You are so gracefully insane.

Variant: Life is too short, or too long, for me to allow myself the luxury of living it so badly.
Source: Eleven Minutes

14 January letter to John Martin: 14, Correspondence between John Martin and William Smith O'Brien relative to a French invasion, 1861 https://books.google.com/books?id=uioenbWx30MC&pg=PA14,

We Bereaved (1929)

Source: The Sweet Far Thing