To add my 2¢; how about, in the spirit of the pidgin English tradition:

	aCollection
	        collect: [:x | x squared]
	        selecting: #even 
	        stopIf: [:x | x squared = 2500]

complemented by:

	aCollection
	        collect: [:x | x squared]
	        selecting: #even 
	        stopBefore: #isNil



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^[^ Jaromir
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