This work, a follow up to his enormously successful 1724 book, Logic (also available from Cosimo) was first published in 1741. In this replica 1837 edition, discover. . Directions for the attainment of useful knowledge . The different modes of learning compared: observation, reading, instruction, conversation, and study . Notes on learning a foreign language . Dealing with disputes in a logical way . Enlarging the capacity of the mind and improving the memory . Overcoming prejudices . And much more.