If you spend too much time trying to find out what is good or bad about someone else, you'll forget your own soul and end up exhausted and defeated by the energy you have wasted in judging others.
When an idea is just rising on the horizon, the soul's temperature with respect to it is usually very cold. Only gradually does the idea develop its warmth, and it is hottest (which is to say, exerting its greatest influence) when belief in the idea is already once again in decline.
Nirvana is the utter extinction of all that is base in us, all that is vicious in us. Nirvana is not like the black, dead peace of the grave, but the living peace, the living happiness of a soul which is conscious of itself and conscious of having found its own abode in the heart of the Eternal.