Quote by Étienne Bonnot de Condillac

"Sensation is the foundation of all our knowledge."

"We can only know what we perceive through our senses."

"The mind is shaped by experience and observation."

"Language is the instrument of thought."

"Friendship is built on trust and honesty."

"True friendship is worth more than gold."

"Good friends are like stars, always there even when you can't see them."

"Friendship means sacrifice."