“To know and to think, to see the truth with the eye of the mind, is always a joy. The older a man grows, the greater is the pleasure that this affords him…. As love is the life of the heart, so is the endeavor after knowledge and truth the life of the mind. Amid the movements of time, the daily labor, perplexities, and contradictions of life, we should lift our gaze fearlessly to the clear vault of heaven, and seek ever to obtain a firmer grasp of …. the origin of all goodness and beauty, the capacities of our own hearts and minds, the intellectual fruits of mankind throughout the centuries, and the wonderful works of Nature around us; but remembering always that in humility alone lies true greatness, and that knowledge and wisdom are profitable only in so far as our lives are governed by them”. Nicholas of Cusa, 15th Century
System D 