Henry Harvey Littlejohn, 1911 Encyclopædia Britannica (1911)
“ It is within comparatively recent years that the study of suicide by means of the vital statistics of various European countries has demonstrated that while the act may be regarded as a purely voluntary one, yet that suicide as a whole conforms there to certain general laws, and is influenced by conditions other than mere individual circumstances or surroundings. Thus it can be shown that each country has a different suicide-rate, and that while the rate for each country may fluctuate from year to year, yet it maintains practically the same relative proportions to the rates of other countries. ”
