Indestructible waterproof material: You will never need another bookmark again – waterproof, tear resistant, will last forever as long as you use it as a bookmark.
Unique Design: Each bookmark honors a philosopher with all their guiding wisdom.
Size: 7 x 2 inches, not too big for the smallest paperback, not too small for the biggest hardcover.
Immanuel Kant was an influential German philosopher in the Age of Enlightenment. In his doctrine of transcendental idealism, he argued that space, time, and causation are mere sensibilities; "things-in-themselves" exist, but their nature is unknowable.