“ Mental superiority of any kind is at present everywhere so much below the demand; there is such a deficiency of persons competent to do excellently anything which it requires any considerable amount of ability to do ”
 John Stuart Mill, The Subjection of Women (1869). copy citation

Context

“Where there is now one person qualified to benefit mankind and promote the general improvement, as a public teacher, or an administrator of some branch of public or social affairs, there would then be a chance of two. Mental superiority of any kind is at present everywhere so much below the demand; there is such a deficiency of persons competent to do excellently anything which it requires any considerable amount of ability to do; that the loss to the world, by refusing to make use of one-half of the whole quantity of talent it possesses, is [Pg 154] extremely serious. It is true that this amount of mental power is not totally lost.” source