The result is firstly that the degrees of the love that...
The result is firstly that the degrees of the love that different things deserve or receive differ according to their merits, and secondly that anything which is in conflict with those precious and valuable things or prevents their realisation should be hated. For example, if justice is to be loved injustice should be hated. Or if a person who tells the truth is to be loved a person who lies should be hated.
Of course, in respect to their other characters and deeds, the situation might be different. A single person might be loved or praised for something and at the same time he might be hated or blamed for the other. In comparison with some other faiths, one aspect of love in Islam is that it is usually considered along with `hate (of the evil) for the sake of God'. One has to love for the sake of God and hate for the sake of God.
There is a tendency among some people to think that there should be no hate at all. These people assume that excellence and nobility of character and "being sociable" consist of having all men one's friends. Certainly Islam recommends Muslims to love people and optimise compassionate and sincere relationship with them, even if they do not believe in Islam or in God.
However, it is not feasible for a person who has principles in his life and has devoted his life to realise sacred values to be indifferent to evil and oppressive deeds of wrongdoers and make friendship with everybody. Such a person certainly will have some enemies, whether we wish or not. There are always good people in the society and bad people. There are fair people and despotic people. Good and bad are two opposite poles.
Attraction towards the good is not possible without repulsion from the bad. When two human beings attract each other and their hearts wish for them to be friends and companions one with the other we should look for a reason for that. The reason is nothing other than similarity and resemblance. Unless there is a similarity between these two persons, they cannot attract one another and move towards friendship with each other. Rumi in his Mathnavi mentions two fine stories that illustrate this fact.
One story is that once a very wise and well‑known Greek physician asked his disciples for some medicine for himself. His disciples were shocked. They said: "O, Master! This medicine is for the treatment of madness, but you are the wisest person that we know." The master replied: " On my way to here, I met a mad person.