One who is able to withdraw his senses from sense objects, as the tortoise draws his limbs within the shell, is to be understood as truly situated in knowledge.
Man learns through experience, and the spiritual path is full of different kinds of experiences. He will encounter many difficulties and obstacles, and they are the very experiences he needs to encourage and complete the cleansing process.
To be what we are, and to become what we are capable of becoming, is the only end of life.
One is absolutely sickened, not by crimes that the wicked have committed, but by the punishments that the good have inflicted; and a community is infinitely more brutalised by the habitual employment of punishment than it is by the occasional occurrence of crime.

