Belief in God is rational. Everything has a cause. So unless there is a first cause, then you would have an infinite regress. And then nothing could exist. Therefore there must be a first cause. Therefore God, the first cause, exists. QED.
11.3.25
thinking that one is righteous because of strict adherence to ritual.
There is a danger of thinking that one is righteous because of their strict adherence to ritual. Even though many rituals are specified by our holy Torah, that is not equivalent to being righteous. That in turn leads to people thinking that they ought to be supported, thus demanding money from secular Jews because of their strict adherence to ritual. [Being righteous is more in line with keeping all the commandment of the torah. Much of that or in fact mot of that ha to do with being a mensch, good character.