My experience is what I agree to attend to.

Man, biologically considered ... is simply the most formidable of all beasts of prey, and, indeed, the only one that preys systematically on its own kind.

Success or failure depends more upon attitude than upon capacity.

Far from being antecedent principles that animate the process, law, language, truth are but abstract names for its results.

Success or failure depends more upon attitude than upon capacity successful men act as though they have accomplished or are enjoying something. Soon it becomes a reality. Act, look, feel successful, conduct yourself accordingly, and you will be amazed at the positive results.

To give the theory plenty of 'rope' and see if it hangs itself eventually is better tactics than to choke it off at the outset b abstract accusations of self-contradiction

Ingenuity in meeting and pursuing the pupil, that tact for the concrete situation, though they are the alpha and omega of the teacher's art, are things to which psychology cannot help us in the least.