diff --git a/code/practise/15 编写大型程序/01 文本格式化/quote.txt b/code/practise/15 编写大型程序/01 文本格式化/quote.txt
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+  C 	is quirky,  flawed,		and an
+enormous success.		Although accidents of	  history
+   surely helped,	it evidently	satisfied  a    need
+       
+       for a system implementation	language		efficient
+ enough		to  displace		assembly  language,
+yet sufficiently	abstract	and fluent	 to describe
+  algorithms  and		interactions   in  a   wide variety 
+of	  environments.
+    				--		Dennis		M.		Ritchie
\ No newline at end of file