As human beings we are all the same. We have this marvelous intelligence, which sometimes creates problems for us, but when influenced by warm-heartedness can be very constructive. In this context we need to appreciate the value of having moral principles.
In the case of some people, not even if we had the most accurate scientific knowledge, would it be easy to persuade them were we to address them through the medium of that knowledge; for a scientific discourse, it is the privilege of education to appreciate, and it is impossible that this should extend to the multitude.
There are three kinds of intelligence: one kind understands things for itself, the other appreciates what others can understand, the third understands neither for itself nor through others. This first kind is excellent, the second good, and the third kind useless.