Learn French: Je ne tolère pas les caprices, c'est pourquoi je gronde les enfants. - I don't tolerate tantrums, which is why I scold the children.

In French, when you talk about likes, dislikes, or what you tolerate in a general sense, you use the definite article (le, la, les). Because the speaker doesn't tolerate tantrums in general, it must be les caprices rather than the indefinite des caprices.

Why does tolère have a grave accent (è) when the infinitive is tolérer?

Tolérer is a stem-changing verb. When the ending is silent (like the -e in je tolère), the acute accent (é) changes to a grave accent (è) so the vowel can be pronounced with an open stress. You see this same pattern in verbs like espérer (to hope), which becomes j'espère.

Can I use c'est pour ça que instead of c'est pourquoi here?

Yes, they both mean "which is why" or "that is why" and can be used in this context. However, notice a key structural difference: c'est pourquoi connects directly to the next clause without que, whereas c'est pour ça always requires que before the subject (c'est pour ça que je gronde...).

Does caprice mean the exact same thing as the English word "caprice"?