William Garden Blaikie,
The Personal Life of David Livingstone
“ On the body the limbs become wall-knit, the muscles after ̧six months' tramping are as hard as a board, the countenance bronzed as was Adam's, and no dyspepsia. "In remaining at any spot, it is to work. The sweat of the brow is no longer a curse when one works for God; it is converted into a blessing. It is a tonic to the system. ”
