Danh ngôn của Sidney Hook (Sứ mệnh: 8)

Everyone who remembers his own education remembers teachers, not methods and techniques. The teacher is the heart of the educational system.
Wisdom is a kind of knowledge. It is knowledge of the nature, career, and consequences of human values.
To silence criticism is to silence freedom.
Fear of death has been the greatest ally of tyranny past and present.
Students rarely disappoint teachers who assure them in advance that they are doomed to failure.