In Mathematics There Are No True Controversies.

To The Distracting Occupations Belong Especially My Lecture Courses Which I Am Holding This Winter For The First Time, And Which Now Cost Much More Of My Time Than I Like. Meanwhile I Hope That The Second Time This Expenditure Of Time Will Be Much Less, Otherwise I Would Never Be Able To Reconcile Myself To It, Even Practical (astronomical) Work Must Give Far More Satisfaction Than If One Brings Up To B A Couple More Mediocre Heads Which Otherwise Would Have Stopped At A.

Mathematical Discoveries, Like Springtime Violets In The Woods, Have Their Season Which No Human Can Hasten Or Retard.

Mathematicians Stand On Each Other's Shoulders.

The Total Number Of Dirichlet's Publications Is Not Large: Jewels Are Not Weighed On A Grocery Scale.

Mathematics Is Concerned Only With The Enumeration And Comparison Of Relations.