Gottfried Wilhelm Leibniz is a great philosopher and systematizer of scientific knowledge, who raised the question of the complex connection between cognition, intuition and will. Leibniz demonstrated the importance of insight for hypothesizing, the complex structure of consciousness, and the necessity of new sciences for the mutual understanding of mankind. Leibniz was the first to justify technology as part of the universal human experience and taught many generations of philosophers to contemplate complex intellectual processes. The collection presents the works of Leibniz, from which it is best to begin the study of his philosophy.