“The propensity to excessive simplification is indeed natural to the mind of man, since it is only by abstraction and generalisation, which necessarily imply the neglect of a multitude of particulars, that he can stretch his puny faculties so as to embrace a minute portion of the illimitable vastness of the universe. But if the propensity is natural and even inevitable, it is nevertheless fraught with peril, since it is apt to narrow and falsify our conception of any subject under investigation. To correct it partially - for to correct it wholly would require an infinite intelligence - we must endeavour to broaden our views by taking account of a wide range of facts and possibilities; and when we have done so to the utmost of our power, we must still remember that from the very nature of things our ideas fall immeasurably short of the reality.”