Michael _Foster, 1911 Encyclopædia Britannica (1911)
“ He had, about the time when the young Du Bois-Reymond came to his lectures, published his great Elements of Physiology, the dominant note of which may be said to be this:—“Though there appears to be something in the phenomena of living beings which cannot be explained by ordinary mechanical, physical or chemical laws, much may be so explained, and we may without fear push these explanations as far as we can, so long as we keep to the solid ground of observation and experiment.” ”
