This French philosopher argued that society needs freedom of speech and religion.

Montesquieu
Galileo Galilei
Voltaire
Jean-Jacques Rousseau

The philosopher who argued that society needs freedom of speech and religion is Voltaire.

The French philosopher who argued that society needs freedom of speech and religion is Voltaire.

The correct answer is Voltaire. Voltaire was a French philosopher, writer, and outspoken advocate of civil liberties, including freedom of speech and religion. To find the answer to this question, you could start by narrowing down the options and focusing on French philosophers who argued for freedom of speech and religion. You would then research the key ideas and beliefs of each philosopher to determine which one aligns with Voltaire's views on these subjects. By conducting this research and analysis, you would eventually arrive at the answer that Voltaire is the French philosopher who argued for society's need of freedom of speech and religion.