Associate with people with whom you can agree when it matters most.
You do not have to agree on everything.
In fact, it is undesirable to only associate with people with whom you always agree.
You need friction in order to grow.
However, it is important to know that those closest to you share the same fundamental values as you, that, when it matters most, you can work together for the common good of the relationship.
These relationships are not merely of additive value in your life.
The value of these relationships is exponentially greater than the sum of their individual parts.