An old French mathematician said: A mathematical theory is not to be considered complete until you have made it so clear that you can explain it to the first man whom you meet on the street. This clearness and ease of comprehension, here insisted on for a mathematical theory, I should still more demand for a mathematical problem if it is to be perfect; for what is clear and easily comprehended attracts, the complicated repels us.
David HilbertRelated topics
clear clearness comprehension ease french man mathematician meet perfect problem should streetRelated quotes
Apollo at Delphi, through the oracular utterance of his priestess, pronounced Socrates the wisest of men. Of him it is related that he said with sagacity and great learning that the human breast should have been furnished with open windows, so that men might not keep their feelings concealed, but have them open to the view. Oh that nature, following his idea, had constructed them thus unfolded and obvious to the view.
Vitruvius
I do the very best I can to look upon life with optimism and hope and looking forward to a better day, but I don't think there is anything such as complete happiness. It pains me that there is still a lot of Klan activity and racism. I think when you say you're happy, you have everything that you need and everything that you want, and nothing more to wish for. I haven't reached that stage yet.
Rosa Parks
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time someting like that happened in politics or religion.
Carl Sagan
The prevailing economic theory of business enterprise and behavior, the maximization of profit-which is simply a complicated way of phrasing the old saw of buying cheap and selling dear-may adequately explain how Richard Sears operated. But it cannot explain how Sears, Roebuck or any other business enterprise operates, nor how it should operate. The concept of profit maximization is, in fact, meaningless.
Peter Drucker
The one intelligible theory of the universe is that of objective idealism, that matter is effete mind, inveterate habits becoming physical laws. But before this can be accepted it must show itself capable of explaining the tridimensionality of space, the laws of motion, and the general characteristics of the universe, with mathematical clearness and precision ; for no less should be demanded of every Philosophy.
Charles Sanders Peirce