For a long time scientists thought that the tendency of individuals to be less open to doing or trying new things was a result of chronological age. It has been shown that this is not the case. Things like staying in the same job or discipline make people less open to new ideas.

(The Great Courses – Being Human: Life Lessons from the Frontiers of Science)

Plato is really Platon in Greek. The Romanization of the name dropped the ‘N’.

(The Great Courses – Great Thinkers, Great Theorems)