"Presumption should never make us neglect that which appears easy to us, nor despair make us lose courage at the sight of difficulties."

"I am of the African race, and in the colour which is natural to them of the deepest dye; and it is under a sense of the most profound gratitude to the Supreme Ruler of the Universe."

"The colour of the skin is in no way connected with strength of the mind or intellectual powers."

"Evil communication corrupts good manners. I hope to live to hear that good communication corrects bad manners."