In accordance with the divine teachings in this glorious
dispensation we should not belittle anyone and call him ignorant, saying: 'You
know not, but I know’. Rather, we should look upon others with respect, and
when attempting to explain and demonstrate, we should speak as if we are
investigating the truth, saying: 'Here these things are before us. Let us
investigate to determine where and in what form the truth can be found.’
- Abdu’l-Baha (‘Selections from the Writings of ‘Abdu’l-Baha’)