“If happiness consist of virtuous activity, it must be the activity of the
highest virtue, or in other words, of the best part of our nature.
…We conclude then that happiness reaches as far as the power of
thought does, and that the greater a person’s power of thought, the
greater will be his happiness; not as something accidental but in
virtue of his thinking, for that is noble in itself. Hence happiness
must be a form of contemplation.”