Any piece of knowledge which the pupil has himself acquired- any problem which he has himself solved, becomes, by virtue of the… — Herbert Spencer Copy Share Image
“The incessant concentration of thought upon one subject, however interesting, tethers a man's mind in a narrow field.” — William Osler Copy Share Image
“A man should conceive of a legitimate purpose in his heart, and set out to accomplish it. He should make this purpose… — James Allen Copy Share Image
