This quote by Claude Bernard speaks to the individualistic nature of art and the collective nature of science. Art is a creative expression of the person, and it is often viewed as a reflection of the artist's inner thoughts and sensations. Science, on the other hand, is a cumulative effort that needs the cooperation of lots of people. It is a procedure of discovery and expedition that counts on the cumulative understanding and experience of many people. By stating "Art is I; science is we," Bernard is stressing the value of both specific and cumulative efforts in the pursuit of understanding. He is also highlighting the special contributions that each individual can make to the collective effort of science. Eventually, this quote is a tip that both art and science are vital elements of human progress which each has its own unique worth.