Not that Emily would have worn this t-shirt.
But I am delighted that it is for sale. The quote comes from Emily's poem of the same name.
No coward soul is mine,
No trembler in the world's storm-troubled sphere:
I see Heaven's glories shine,
And faith shines equal, arming me from Fear.
O God within my breast,
Almighty, ever-present Deity!
Life - that in me hast rest,
As I - Undying Life- have power in Thee!
Vain are the thousand creeds
That move men's hearts, unutterably vain;
Worthless as withered weeds
Or idlest froth amid the boundless main,
To waken doubt in one
Holding so fast by Thine infinity;
So surely anchored on
The steadfast rock of immortality.
With wide-embracing love
Thy Spirit animates eternal years,
Pervades and broods above,
Changes, sustains, dissolves, creates and rears
Though Earth and moon were gone,
And suns and universes ceased to be,
And Thou wert left alone,
Every Existence would exist in Thee.
There is not room for Death,
Nor atom that his might could render void:
Thou - Thou art Being and Breath,
And what Thou art may never be destroyed.
A good analysis of the poem is available here http://www.guardian.co.uk/books/booksblog/2009/aug/17/poem-of-the-week-emily-bronte and you can buy the t-shirt if you want here http://www.bronte.org.uk/bronte-shop/exclusive/304/mens-no-coward-soul-t-shirt