The most beautiful works of art are those in which necessity and freedom are in perfect balance.

Labor market institutions play a crucial role in shaping economic outcomes.

Memory is a strange thing, it doesn't work like I thought it did. Memory is not a simple thing at all.

The beauty of mathematics lies in its ability to reveal hidden symmetries and truths.

Force and fraud are in war the two cardinal virtues.

语言教学的本质在于思维能力的培养，而不仅仅是知识的积累。