William Garden Blaikie,
The Personal Life of David Livingstone…
“ But I have no fears as to the mental and moral capacity of the Africans for civilization and upward progress. We who suppose ourselves to have vaulted at one bound to the extreme of civilization, and smack our lips so loudly over our high elevation, may find it difficult to realize the debasement to which slavery has sunk those men, or to appreciate what, in the discipline of the sad school of bondage, is in a state of freedom real and substantial progress. ”
