Wiederholung ist die Mutter der Weisheit.
Wiederholung ist die Mutter der Weisheit (Repetition is the mother of knowledge)
Martin Runge
If you want to be inundated with good information, don’t forget to repeatedly say or refer to it.
This also applicable for academic examination. The more you repeat what you have learnt, the more it sticks in the memory for easy recollection. Stay blessed.