“It was extraordinary to be in two places at once, doing two different things — extraordinary, but not confusing.”
Let's Be Frank (1957)
Context: It was extraordinary to be in two places at once, doing two different things — extraordinary, but not confusing. He merely had two bodies which were as integrated as his two hands had been.
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Brian W. Aldiss 116
British science fiction author 1925–2017Related quotes

“Heroes do extraordinary things. What I did was not an extraordinary thing. It was normal.”
Quoted in "Irena Sendlerowa: Warsaw social worker who rescued thousands from the Jewish ghetto" by Rupert Cornwell in The Independent (14 May 2008)

“People do not decide to become extraordinary. They decide to accomplish extraordinary things.”
Though widely attributed to Hillary on the internet, this appears to have originated as a quote about him in a Rolex advertisement.
Disputed

“Extraordinary things are always hiding in places people never think to look.”
Source: My Sister's Keeper

“There's ordinary people out there doing extraordinary things.”
Source: UnWholly

“Being different means you are extraordinary”
“To do two things at once is to do neither.”
Misattributed as Maxim 7, p. 13 https://books.google.com/books?id=GKFGAQAAMAAJ&pg=PA13&dq=%22To+do+two+things+at+once+is+to+do+neither.%22
Variant of:
Duos qui sequitur lepores neutrum capit
Who chases two rabbits catches neither.
A Dictionary of Quotations in most frequent Use, David Evans Macdonnel, 1797, quoted in The Monthly Review, 1798, p. 467 https://books.google.com/books?id=KYhPAAAAYAAJ&pg=PA467&dq=%22duos+qui+sequitur+lepores+neutrum+capit%22
Apparently of medieval or modern origin, not found in antiquity.
Misattributed