Don't Become A Mere Recorder Of Facts,

One Can Truly Say That The Irresistible Progress Of Natural Science Since The Time Of Galileo Has Made Its First Halt Before The Study Of The Higher Parts Of The Brain, The Organ Of The Most Complicated Relations Of The Animal To The External World. And It Seems, And Not Without Reason, That Now Is The Really Critical Moment For Natural Science; For The Brain, In Its Highest Complexity-the Human Brain-which Created And Creates Natural Science, Itself Becomes The Object Of This Science.

It Goes Without Saying That The Desire To Accomplish The Task With More Confidence, To Avoid Wasting Time And Labour, And To Spare Our Experimental Animals As Much As Possible, Made Us Strictly Observe All The Precautions Taken By Surgeons In Respect To Their Patients.

Don't Become A Mere Recorder Of Facts, But Try To Penetrate The Mystery Of Their Origin.

Never Think That You Already Know All. However Highly You Are Appraised, Always Have The Courage To Say To Yourself-i Am Ignorant.

Men Are Apt To Be Much More Influenced By Words Than By The Actual Facts Of The Surrounding Reality