There are four things, which, even if one of them is present in a home, will lead to its destruction and God’s blessings will not bring it to flourishment...
Imam Hasan ('a) is narrated to have said: I am surprised at those who reflect on the food that they are going to eat and yet they do not think at all in regards to the food of their soul. They stay away from unhealthy food, but they fill their hearts with various destructive matters.
Nothing can ever be completed without careful study, planning, and cautiousness; at the same time, nothing can ever be completed without a lack of care as well.
Filling the mind with all sorts of scientific formulas, logical precepts, philosophical principles, and all other types of knowledge is of extremely little value unless it is accompanied with proper thinking and a clear and accurate worldview.