1.
Give yourself to prayer, to reading and meditation on divine truths: strive to penetrate to the bottom of them and never be content with a superficial knowledge.
David Brainerd
Commit yourself to supplication, perusal and contemplation of spiritual verities: strive to understand them thoroughly and never be content with a cursory understanding.
3.
Quality, service, cleanliness, and value.
Steve Ross
4.
Ignorance is not lack of intelligence, nor knowledge a proof of genius.
Luc de Clapiers
5.
A mere index hunter, who held the eel of science by the tail. Index-hunter is a term used mockingly, meaning one who acquires superficial knowledge merely by consulting indexes. The '[holding] the eel of science by the tail' allusion was used in 1728 by Alexander Pope (q.v.).
Tobias Smollett
6.
Superficial knowledge ... is hurtful to those who possess true genius; for it necessarily draws them away from their main object, wastes their industry over details and subjects foreign to their needs and natural talent, and lastly does not serve, as they flatter themselves, to prove the breadth of their mind. In all ages there have been men of very moderate intelligence who knew much, and so on the contrary, men of the highest intelligence who knew very little. Ignorance is not lack of intelligence, nor knowledge a proof of genius.
Luc de Clapiers
7.
Index-learning turns no student pale,
Yet holds the eel of Science by the tail.
Index-learning is a term used to mock pretenders who acquire superficial knowledge merely by consulting indexes.
Alexander Pope