You Ask About My Opinion On Vivisection.

Sympathy Will Have Been Increased Through Natural Selection

[herschel And Humboldt] Stirred Up In Me A Burning Zeal To Add Even The Most Humble Contribution To The Noble Structure Of Natural Science. No One Or A Dozen Other Books Influenced Me Nearly So Much As These Two. I Copied Out From Humboldt Long Passages About Teneriffe And Read Them Aloud On One Of [my Walking Excursions].

My Mind Seems To Have Become A Kind Of Machine For Grinding General Laws Out Of Large Collections Of Facts, But Why This Should Have Caused The Atrophy Of That Part Of The Brain That Alone On Which The Higher Tastes Depend, I Cannot Conceive. A Man With A Mind More Highly Organised Or Better Constituted Than Mine Would Not, I Suppose, Have Thus Suffered, And If I Had To Live My Life Over Again, I Would Have Made A Rule To Read Some Poetry And Listen To Some Music At Least Once Every Week; For Perhaps The Parts Of My Brain Now Atrophied Would Thus Have Been Kept Alive Through Use.

I Suppose You Are Two Fathoms Deep In Mathematics, And If You Are, Then God Help You. For So Am I, Only With This Difference: I Stick Fast In The Mud At The Bottom, And There I Shall Remain.

Such Simple Instincts As Bees Making A Beehive Could Be Sufficient To Overthrow My Whole Theory.