The true essence of humankind is kindness. There are other qualities which come from education or knowledge, but it is essential, if one wishes to be a genuine human being and impart satisfying meaning to one's existence, to have a good heart.

Feathers shall raise men even as they do birds towards heaven :- That is by letters written with their quills.

Once upon a time, in some out of the way corner of that universe which is dispersed into numberless twinkling solar systems, there was a star upon which clever beasts invented knowing.

Imagination without deep and full knowledge is a snare.

Expert knowledge is limited knowledge.

Knowledge is a tangible asset, quite often the most important tool in your work.