Reading furnishes the mind only with materials of knowledge; it is thinking makes what we read ours. [ John Locke ]

To one it is the mighty heavenly goddess; to another it is an excellent cow that furnishes him with milk. [ Schiller ]

Fame is an undertaker that pays but little attention to the living, but bedizens the dead, furnishes out their funerals, and follows them to the grave. [ Colton ]

In the actual condition of medical science, the physician mostly plays but the part of simple spectator of the sad episodes which his profession furnishes him. [ Magendie ]

The amplest knowledge has the largest faith. Ignorance is always incredulous. Tell an English cottager that the belfries of Swedish churches are crimson, and his own white steeple furnishes him with a contradiction. [ Willmott ]

They that have read about everything are thought to understand everything too; but it is not always so. Reading furnishes the mind only with the materials of knowledge; it is thinking that makes what we read ours. We are of the ruminating kind, and it is not enough to cram ourselves with a great load of collections, - we must I chew them over again. [ Channing ]

As a science, logic institutes an analysis of the process of the mind in reasoning, and investigating the principles on which argumentation is conducted; as an art, it furnishes such rules as may be derived from those principles, for guarding against erroneous deductions. Some are disposed to view logic as a peculiar method of reasoning, and not as it is, a method of unfolding and analysing our reason. They have, in short, considered logic as an art of reasoning. The logician's object being, not to lay down principles by which one may reason, but by which all must reason, even though they are not distinctly aware of them - to lay down rules not which may be followed with advantage, but which cannot possibly be deviated from in sound reasoning. [ R. Whately ]