It is a good thing to think. The more thought we put into our work the better it will be done. Work of all kinds becomes exalted, ennobled, refined, and produces good, lasting effects just in proportion as men put thought into it. All worthy, noble, useful, beautiful living must have its dark quarries of purposing, thinking, planning, shaping, polishing, behind its being and doing. Look well to the quarries, and you need not give much thought to the rising of the building. Prepare no stained blocks in your heart-quarries. Train yourself to think only pure thoughts — white, clean thoughts.