There are two kinds of Riya - Showing off-Ostentation ie pure ostentation and adulterated ostention. In pure ostentation "Riya" a man does a good deed only for worldly benefit. In Adulterated ostentation, a man does a good deed with the intention of reaping the benefits of the world as well as of the Hereafter.
If the world had two gods, it would surely go to ruin-this is the first premise. Now it is known that it has not gone to ruin-this is the second premise. From these premises the conclusion must of necessity follow, that is, the denial of two gods.
If the first inward thought is not warded off, it will generate a desire, then the desire will generate a wish, and the wish will generate an intention, and the intention will generate the action, and the action will result in ruin and divine wrath. So evil must be cut off at its root, which is when it is simply a thought that crosses the mind, from which all the other things follow on.
People count with self-satisfaction the number of times they have recited the name of God on their prayer beads, but they keep no beads for reckoning the number of idle words they speak.
Men have such a good opinion of themselves, of their mental superiority and intellectual depth; they believe themselves so skilled in discerning the true from the false, the path of safety from those of error, that they should be forbidden as much as possible the perusal of philosophic writings.
In the intricate paths of life when difficulties and hardships confront a man, and the darkness of difficulty and suffering becomes long, it is patience only that acts like a light for a Muslim, that keeps him safe from wandering here and there, and saves him from the muddy marsh of disappointment, desperation and frustration.
Anyone who refuses to marry is shrinking his farmwork, wasting the seed, and leaving idle the appropiate tools created by God; he sins against the purpose of creation and wisdom visible in the evidence of natural structure. The man who refuses to marry has severed a chain of being, a previously unbroken chain linking his own existence to that of Adam.