About grammer and sentence meaning.

I feel the need, because you're asking about proper language issues, to point out that grammar is the proper way to spell this word (not grammer).

The meaning of the sentence is for the reader (student or otherwise) to study the words (and meanings) of the great thinkers of civilization. These words admonish the reader to not allow pride to stand in the way of making changes that would personal growth. Do not rush through and be incomplete and careless with education.

These lessons learned from these words are vital to understanding more than just language but might be a guide to your life. Furthermore, an understanding of these words and employing the philosophy or knowledge can allow you to contribute a far greater role in a democratic society