who expressed the idea of individualism better than anyone else

There’s no single person universally recognized as expressing the idea of individualism “better” than anyone else. Individualism is a complex concept with various interpretations throughout history. Here are some influential figures associated with individualism:

Classical Liberalism:

• John Locke (17th century): Emphasized individual rights, natural law, and limited government.
• Adam Smith (18th century): Championed free markets and individual liberty as essential for economic prosperity.

Transcendentalism:

• Ralph Waldo Emerson (19th century): Promoted self-reliance, intuition, and individual expression.

Existentialism:

• Jean-Paul Sartre (20th century): Stressed individual freedom and responsibility in a seemingly meaningless world.

Libertarianism:

• Ayn Rand (20th century): Advocated for radical individualism, self-interest, and minimal government intervention.