Knowledge...

According to his evolution, man knows the truth; and the more he knows, the more he finds there is to know.

Bowl of Saki, by Hazrat Inayat Khan
Commentary by Pir-o-Murshid Inayat Khan:

Which is the most desirable thing in life, to seek for the goal or to dwell in this changing life? The answer is that every person's desire is according to his evolution. That for which he is ready is desirable for him. Milk is a desirable food for the infant, other foods for the grown-up person. Every stage in life has its own appropriate and desirable things.

The first sign of realization is tolerance towards others. There are the words of Christ: 'In the house of my father are many mansions' and those of the Prophet: 'Each soul has its own religion' This means that according to his evolution so man knows the truth and the more a man knows, the more he finds there is to learn.

The mystics have in all ages recognized the virtue of purity which is represented by innocence. A man filled with earthly knowledge -- and what he calls learning is often only the knowledge of names and forms -- has no capacity for the knowledge of truth or God. It is the innocent and pure soul who has a capacity for learning. When a person comes to take a lesson on any subject, and he brings his own knowledge with him, the teacher has little to teach him, for the doors of his heart are not open. His heart that should be empty in order to receive knowledge is occupied by the knowledge that he already had acquired. In order to know the truth or to know God earthly qualifications and earthly wisdom or learning are not necessary. What one has to learn is how to become a pupil.