All human knowledge begins with intuitions, proceeds from thence to concepts, and ends with ideas.

There is a limit where the intellect fails and breaks down, and this limit is where the questions concerning God and freewill and immortality arise.

Have patience awhile; slanders are not long-lived. Truth is the child of time; erelong she shall appear to vindicate thee.

Religion is the recognition of all our duties as divine commands.

In the kingdom of ends everything has either a price or a dignity. Whatever has a price can be replaced by something else as its equivalent; on the other hand, whatever is above all price, and therefore admits of no equivalent, has a dignity. But that which constitutes the condition under which alone something can be an end in itself does not have mere relative worth, i.e., price, but an intrinsic worth, i.e., a dignity.

Happiness, though an indefinite concept, is the goal of all rational beings

I have no knowledge of myself as I am, but merely as I appear to myself.