We must make automatic and habitual, as early as possible, as many useful actions as we can...in the acquisition of a new habit, we must take car to launch ourselves with as strong and decided initiative as possible. Never suffer an exception to occur till the new habit is securely rooted in your life.

Science herself consults her heart when she lays it down that the infinite ascertainment of fact and correction of false belief are the supreme goods for man.

Language is the most imperfect and expensive means yet discovered for communicating thought.

Compared with men, it is probable that brutes neither attend to abstract characters, nor have associations by similarity. Their thoughts probably pass from one concrete object to its habitual concrete successor far more uniformly than is the case with us. In other words, their associations of ideas are almost exclusively by contiguity. So far, however, as any brute might think by abstract characters instead of by association of con cretes, he would have to be admitted to be a reasoner in the true human sense. How far this may take place is quite uncertain.

Philosophy is "an unusually stubborn attempt to think clearly.

To know psychology, therefore, is absolutely no guarantee that we shall be good teacher.

Keep the faculty of effort alive in you by a little gratuitous exercise every day.