Wundt was a German physiologist and psychologist who stressed the use of scientific methods in psychology. Regarded as one of the fathers of psychology and the founder of experimental psychology, Wundt is credited with many firsts in the field: he gave the first course in scientific psychology in 1862, established the first psychological laboratory in 1879, and founded the first journal of psychology in 1881. What famous expression is attributed to Wundt? Discuss