“The unceasing flow of thought in all its various forms is an inescapable and defining aspect of the human condition.”

“You can't make decisions based on fear and the possibility of what might happen.”

“The straight line, a respectable optical illusion which ruins many a man.”

“While we are actually subjected to them, the 'moods' and 'spirits' of nature point no morals. Overwhelming gaiety, insupportable grandeur, sombre desolation are flung at you. Make what you can of t...”

“...[N]ature generally in the distribution of her capacities has adapted the means to the end... [so nature's] true destination must be to produce a will, not merely good as a means to something els...”

“Morality is simply the attitude we adopt towards people we personally dislike.”