To finish the moment, to find the journey’s end in every step of the road, to live the greatest number of good hours, is wisdom. 

– Ralph Waldo Emerson

Year's end is neither an end nor a beginning but a going on, with all the wisdom that experience can instill in us. 

- Hal Borland

In a good bookroom you feel in some mysterious way that you are absorbing the wisdom contained in all the books through your skin, without even opening them.

- Mark Twain

Mistakes are lessons of wisdom.
                                   - Hugh White