Never have I dealt with anything more difficult than my own soul, which sometimes helps me and sometimes opposes me.

A human-being is not a human-being while his tendencies include self-indulgence, covetousness, temper and attacking other people

Knowledge exists potentially in the human soul like the seed in the soil; by learning the potential becomes actual.

Whoever determines the truth from people alone will remain lost in the plains of bewilderment. Rather, know the truth, and you will know its people.

Do not allow your heart to take pleasure with the praises of people, nor be saddened by their condemnation.

Know, O beloved, that man was not created in jest or at random, but marvelously made and for some great end. Although he is not form everlasting, yet he lives for ever; and though his body is mean and earthly, yet his spirit is lofty and divine

Whoever says that all music is prohibited, let him also claim that the songs of birds are prohibited.