Some highlights from the speech;
Earlier and repeated exposure to words in familiar contexts increases vocabulary.
Words are the tools for faster and elaborate processing of the internal and external world.
The initial steps for expanding vocabulary requires a lot of effort. It is simply difficult and boring in the beginning.
Reading requires a tansition from resting state to task related activation state.
The neural tissue in human brain develops in response to repeated continues stimulation.
We use difficult parts of the brain to understand.