For the total development of the human being, solitude as a means of cultivating sensitivity becomes a necessity. One has to know what it means to be alone, what it is to meditate, what it is to die; and the implications of solitude, of meditation, of death, can be known only by seeking them out. These implications cannot be taught, they must be learnt. One can indicate, but learning by what is indicated is not the experiencing of solitude or meditation. To experience what is solitude and what is meditation, one must be in in a state of inquiry; only a mind that is in a state of inquiry is capable of learning. But when inquiry is suppressed by previous knowledge, or by the authority and experience of another, then learning becomes mere imitation, and imitation causes a human being to repeat what is learnt without experiencing it.
~ Jiddu Krishnamurti
There exists no more difficult art than living. For other arts and sciences, numerous teachers are to be found everywhere. Even young people believe that they have acquired these in such a way, that they can teach them to others: throughout the whole of life, one must continue to learn to live and, what will amaze you even more, throughout life one must learn to die.