The ways of thinking

We all know that verbal communication is very weak, that only 5% of what is expressed is to be understood. But I believe Thomas Aquinas is not referring to this issue of efficiency in communication, but to the very nature of our own mind and how it determines up to the very content of what we hear and understand. 

The mind is the primary cause behind everything: the reality is perceived through our mind, our identity is defined by it; so as all our interaction with others. Therefore whatever we may hear, understand, accept and memorize from what is said today, these are all consequences of all our values and preference systems. What is received is received according to the nature of the recipient. Or to say it another way, we do not believe what we see. Rather we see what we believe.