Explanation
Expresses that something is the best or most desirable course of action; 'nothing better than...'.
Formation
Verb (dictionary form) + に越したことはない, い-Adjective + に越したことはない, な-Adjective/Noun + である + に越したことはない
Detailed explanation
The ～に越したことはない grammar point indicates that a certain state or action is the most favorable or ideal. It literally conveys the idea that nothing surpasses the stated condition.
Examples
Hayaku junbi suru ni koshita koto wa nai.
It's best to prepare early.
Shinsen na shokuzai o tsukau ni koshita koto wa nai.
There's nothing better than using fresh ingredients.
Anzen unten ni koshita koto wa nai.
Safe driving is always best.
Kenkouteki na seikatsu o okuru ni koshita koto wa nai.
There's nothing better than leading a healthy lifestyle.
Practice
Grammar content sourced from hanabira.org.