One Must Not Be Mean

The View Is Often Defended That Sciences Should Be Built Up On Clear And Sharply Defined Basal Concepts. In Actual Fact No Science, Not Even The Most Exact, Begins With Such Definitions. The True Beginning Of Scientific Activity Consists Rather In Describing Phenomena And Then In Proceeding To Group, Classify And Correlate Them.

A Strong Egoism Is A Protection.

Much Of Our Highly Valued Cultural Heritage Has Been Acquired At The Cost Of Sexuality.

I Think That In General It Is A Good Plan Occasionally To Bear In Mind The Fact That People Were In The Habit Of Dreaming Before There Was Such A Thing As Psychoanalysis.

Dogs Love Their Friends And Bite Their Enemies, Quite Unlike People, Who Are Incapable Of Pure Love And Always Have To Mix Love And Hate.