“Disability is not a hindrance to reach the sky”

Source: Bleach, Volume 10

Attributed to Shankly in 2013, thirty years after Shankly's death. However, very similar sayings are found anonymously from the late twentieth-century.
Disputed
Source: http://www.empireofthekop.com/2013/07/26/liverpool-should-aim-for-epl-title-and-possibly-finish-in-the-top-four-by-liverpool_red1/
Source: Harrington and Kavanagh, Prayer for Parish Groups: Preparing and Leading Prayer for Group Meetings https://books.google.com/books?id=tnpYzxOSsDoC&pg=PT120&dq=%22Aim+for+the+sky%22+ceiling&hl=en&sa=X&ved=0CCUQ6AEwAGoVChMIoszvpuGkyAIVyD6ICh0pVwwm#v=onepage&q=%22Aim%20for%20the%20sky%22%20ceiling&f=false, p. 32, 1998

"Renascence" (1912), st. 3 Renascence and Other Poems (1917)
Context: But, sure, the sky is big, I said;
Miles and miles above my head;
So here upon my back I'll lie
And look my fill into the sky.
And so I looked, and, after all,
The sky was not so very tall.
The sky, I said, must somewhere stop,
And — sure enough! — I see the top!
The sky, I thought, is not so grand;
I 'most could touch it with my hand!
And reaching up my hand to try,
I screamed to feel it touch the sky.

Source: The Sheltering Sky (1949), p. 210

In Lugalbanda in the Mountain Cave, Ur III Period (21st century BCE). http://etcsl.orinst.ox.ac.uk/cgi-bin/etcsl.cgi?text=t.1.8.2.1#

Source: Yours Until Dawn

References

Who's Gonna Stop the Rain
Not That Kind (2000)