#### Quote of the day

No man knows till he has suffered from the night how sweet and dear to his heart and eye the morning can be.

#### Richard Courant

**Born:**January 8, 1888

**Died:**January 27, 1972

**(aged 84)**

**Bio:**Richard Courant was a German American mathematician. He is best known by the general public for the book What is Mathematics?, co-written with Herbert Robbins.

**Known for:**

- What Is Mathematics? (1941)
- Methoden der mathematischen Physik (1924)
- Introduction to Calculus and Analysis (1965)
- Differential and Integral Calculus (1942)
- Supersonic flow and shock waves (1944)