My choices are rejections, since there is no other way, but what I reject is more numerous, denser, more demanding than before. A little poem, a sigh, at the cost of indescribable losses. Wisława Szymborska
Theory should be ever more demanding of our empirical resources. Simultaneously, data should be ever more demanding of the empirical relevance of theory and of the theorist's expertise in working imaginatively on problems of the world, rather than on stylized problems of the imagination. Vernon L. Smith
What we know is the workplace is more demanding than ever before. Margaret Spellings
From the reader's view, a poem is more demanding than prose. Mark Strand
There is nothing more demanding than the taste for mediocrity. Beneath its ever moderate appearance there is nothing more intemperate; nothing surer in its instinct; nothing more pitiless in its refusals. It suffers no greatness, shows beauty no mercy. Henri de Lubac
The world of the future will be an even more demanding struggle against the limitations of our intelligence, not a comfortable hammock in which we can lie down to be waited upon by our robot slaves. Norbert Wiener