If once a man indulges himself in murder, very soon he comes to think little of robbing; and from robbing he comes next to drinking and Sabbath-breaking, and from that to incivility and procrastinatio...
Solitude, though it may be silent as light, is like light, the mightiest of agencies for solitude is essential to man. All men come into this world alone and leave it alone.
It is remarkable, however, that at the very lowest point of Kant's depression, when he became perfectly incapable of conversing with any rational meaning on the ordinary affairs of life, he was still...