“A man who strains himself on the stage is bound, if he is any good, to strain all the people sitting in the stalls.”
"Emphasis on Sport" in the Berliner Börsen-Courier (6 February 1926), as quoted in Brecht on Theatre (1964) edited and translated by John Willett.
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Bertolt Brecht 102
German poet, playwright, theatre director 1898–1956Related quotes

The Almost Perfect State (1921)
Context: The best good that you can possibly achieve is not good enough if you have to strain yourself all the time to reach it. A thing is only worth doing, and doing again and again, if you can do it rather easily, and get some joy out of it.
Do the best you can, without straining yourself too much and too continuously, and leave the rest to God. If you strain yourself too much you'll have to ask God to patch you up. And for all you know, patching you up may take time that it was planned to use some other way.
BUT... overstrain yourself now and then. For this reason: The things you create easily and joyously will not continue to come easily and joyously unless you yourself are getting bigger all the time. And when you overstrain yourself you are assisting in the creation of a new self — if you get what we mean.

“Their heavenly harps a lower strain began, and in soft music mourn the fall of man.”

Sylphs
Poems (1851), Prometheus

“No man is bound by the words themselves, either to kill himselfe, or any other man.”
The Second Part, Chapter 21, p. 112
Leviathan (1651)

"Winston and Clementine" http://www.winstonchurchill.org/i4a/pages/index.cfm?pageid=761
Context: It has always been my temptation to put myself in other people's shoes: even into a horse's shoes as he strains before the heavy dray; into a ballerina's points as she feels age weigh upon her spring; into Cinderella's slippers as she danced till midnight; into the jackboot that kicks; into the Tommy's boots that tramp; into the magic seven-leaguers. With experience of age I have learned to control this habit of sympathy which deforms truth.