Moreover, it is a certainty that promptitude in execution diminishes as more people are put in charge of it: where prudence is made too much of, not enough is made of fortune; opportunity is let slip, and deliberation results in the loss of its object.
— from The Social Contract & Discourses by Jean-Jacques Rousseau

In my opinion no error is more mischievous than this.
— from Life and Letters of Charles Darwin — Volume 1 by Charles Darwin

First of all it enables the child to ascertain the identity of two stimuli by means of numerous exercises in matching and fitting.
— from Spontaneous Activity in Education by Maria Montessori

It is the merest common sense so to present characters that a cast of average ability, or a stage manager of no extraordinary imagination may understand and represent them with at least approximate correctness, rather than so to write that only a group of creative artists can do any justice to the play.
— from Dramatic Technique by George Pierce Baker

Three and a half millions of newly enfranchised, ignorant men, women and children!
— from The Negro and the Nation A History of American Slavery and Enfranchisement by George Spring Merriam

I lived in the very common conceit that I had my own nature entirely in my power and thus, from out the headquarters of my self-consciousness, could freely dispose of it, always following the counsels of a reasonable deliberation.
— from The Bride of Dreams by Frederik van Eeden