If the Torah commands us in Kedoshim to "love your neighbor as yourself" and Rashi says this is a fundamental principle of the entire Torah, why does this same parashah also list so many specific laws about not taking revenge, not bearing grudges, and not placing stumbling blocks before others — isn't loving your neighbor enough?

Listen, this is an excellent question, and it shows you're really thinking about Parashat Kedoshim. The truth is, loving your neighbor as yourself is not a simple emotion or feeling—it's a comprehensive mitzvah that requires specific instructions to fulfill properly. You see, when the Torah says "love your neighbor as yourself," it's giving you a fundamental principle, a big rule—klal gadol baTorah. But it's not the entire Torah. Many people make the mistake of thinking this means just be nice to everyone and that's it. No, my friend. This is where they go wrong. The Sefer HaChinuch explains it beautifully: many of the mitzvot in the Torah actually depend on the fulfillment of this very mitzvah of loving each other. Because if you truly love your fellow Jew as yourself, you won't steal from him, you won't commit adultery with his wife, you won't defraud him financially, you won't speak lashon hara about him, and you won't harm him in any way. But here's the key: you cannot hate your brother if you love him. It's not possible to love another Jew if you keep a grudge. So the Torah has to spell out the details—don't take revenge, don't bear a grudge, don't place a stumbling block—because these are the practical applications of what love means. Without these specific laws, people would think they're loving others while holding onto hatred in their hearts. The Torah connects these mitzvot together for a reason. In Parashat Kedoshim, it tells you: don't hate your brother in your heart, rebuke him when he sins, don't bear a sin because of him, and then love your fellow as yourself. This is a manual, a step-by-step instruction. You move from not hating to actively rebuking out of love to finally achieving true love. You can't skip the steps. The specific prohibitions against revenge and bearing grudges are critical because they address human nature. When someone wrongs you, your natural tendency is to want payback or at least to remember it against them. The Torah says no—even though he didn't lend you his hammer, you must still lend him your knife. And you can't even say "I'm not like you" while you do it, because that's still bearing a grudge. This is the beauty of Torah—it doesn't leave you guessing. It gives you the big principle and then the detailed laws to show you exactly how to live it. Loving your neighbor without these guidelines would be meaningless. Every intelligent person can understand this—the details are what make the principle real and applicable to your daily life.