Quote

Now it is established in the sciences that no knowledge is acquired save through the study of its causes and beginnings, if it has had causes and beginnings; nor completed except by knowledge of its accidents and accompanying essentials.

The beginning of knowledge is the discovery of something we do not understand.

Knowledge is knowing that we cannot know.

Knowledge is the life of the mind.

To have real knowledge, one must understand the essence of things and not only their manifestations.

Knowledge is what we get when an observer, preferably a scientifically trained observer, provides us with a copy of reality that we can all recognize.

The knowledge of God is the cause of things. For the knowledge of God is to all creatures what the knowledge of the artificer is to things made by his art.

Knowledge has value only insofar as it contributes to the all-round development of the whole nature of man.

Knowledge is sometimes superfluous: when we need it, we have it not.

Knowledge is that possession that no misfortune can destroy, no authority can revoke, and no enemy can control. This makes knowledge the greatest of all freedoms.