The loss of a much-prized treasure is only half felt when we have not regarded its tenure as secure.

Man... knows only when he is satisfied and when he suffers, and only his sufferings and his satisfactions instruct him concerning himself, teach him what to seek and what to avoid. For the rest, man is a confused creature; he knows not whence he comes or whither he goes, he knows little of the world, and above all, he knows little of himself.

The history of science is science itself; the history of the individual, the individual.

Moral epochs have their course as well as the seasons. We can no more hold them fast than we can hold sun, moon, and stars. Our faults perpetually return upon us; and herein lies the subtlest difficulty of self-knowledge.

There is a politeness of the heart; this is closely allied to love.

What am I then...? Everything that I have seen, heard, and observed I have collected and exploited. My works have been nourished by countless different individuals, by innocent and wise ones, people of intelligence and dunces. Childhood, maturity and old age all have brought me their thoughts....their perspectives on life. I have often reaped what others have sowed. My work is the work of a collective being that bears the name Goethe.

Taste is only to be educated by contemplation, not of the tolerably good but of the truly excellent. I therefore show you only the best works; and when you are grounded in these, you will have a standard for the rest, which you will know how to value, without overrating them.