The most characteristic mark of a great mind is to choose some one important object, and pursue it for life.
Anna Letitia BarbauldLet us confess a truth, humiliating to human pride; - a very small part only of the opinions of the coolest philosopher are the result of fair reasoning; the rest are formed by his education, his temperament, by the age in which he lives, by trains of thought directed to a particular track through some accidental association - in short, by prejudice.
Anna Letitia Barbauldmany things I knew, I have forgotten; many things I thought I knew, I find I know nothing about; some things I know, I have found not worth knowing; and some things I would give - O what would one not give to know? are beyond the reach of human ken.
Anna Letitia Barbauld