## Mathematicians Of The Day

### 29th October

#### Quotation of the day

##### From Jean d'Alembert
My dear and illustrious friend - they write to me from Berlin that you are about to take what we philosophers call 'le saut perilleux,' and that you have married one of your relations. ... Accept my compliments, for a mathematician ought to have pre-eminent advantages in the calculations of his own happiness, and any calculations of yours are sure to lead to a solution - the solution in your case being marriage" (letter to Lagrange).