A person has two passions for ...

A person has two passions for love and abhorrence. A big disposition to excessiveness has just a love, because it is more ardent and stronger.
 Rene Descartes

Quotes from the same author

It is not enough to have a good mind; the main thing is to use it well.
 René Descartes
The greatest minds are capable of the greatest vices as well as of the greatest virtues.
 René Descartes
Divide each difficulty into as many parts as is feasible and necessary to resolve it.
 René Descartes
Perfect numbers like perfect men are very rare.
 Rene Descartes
The greatest minds, as they are capable of the highest excellencies, are open likewise to the greatest aberrations; and those who travel very slowly may yet make far greater progress, provided they keep always to the straight road, than those who, while they run, forsake it.
 Rene Descartes