"Intuition and concepts constitute... the elements of all our knowledge, so that neither concepts without an intuition in some way corresponding to them, nor intuition without concepts, can yield knowledge"

This quote by Immanuel Kant recommends that both instinct (our capability to view things without reasoning) and ideas (our psychological understanding of things) make up the foundation of all knowledge. He argues that neither can be utilized alone to gain knowledge, as principles require to be grounded in some form of matching instinct, and instinct requires to be accompanied by concepts in order to be useful in gaining understanding. Ultimately, Kant is implying that a mix of intuition and ideas is necessary to attain a thorough understanding of the world around us.