(DISCLAIMER: I do not claim to be an expert on anything. I'm merely giving my opinions and interpretations as I see them as being applicable. We are not an absolutist faith, nor do I personally regard the maxims as infallible)
Maxim: Καιρον γνωθι or "Know your opportunity"
How many times have you missed out on something great (or at least something good) merely because you did not hear the faint knock of opportunity at your door? I know that I have had this happen time and time again. The reasons are many and varied, but the most common and tragic reason for missing out on something wonderful is simply fear.
It is one of the eternals of the human condition. To survive and thrive we must be cautious and plan carefully, but to truly prosper we have to take a chance and take advantage of the opportunities we are given. Oftentimes doing this can be hard and scary. We have to wade into cold and sometimes unforgiving waters where we may have to struggle to fully take advantage of the situation we have been given.
In this maxim there is also a warning to be cautious. When you take it into conjunction with the "Know yourself" maxim that we previously looked at, it is a clear call to truly know what opportunities are and are not yours to take. Sometimes we get greedy or overambitious and get ourselves into places and things that are more than we can handle and we end up damaging ourselves (mentally or physically) and more often than not damaging those around us. Hence being honest with yourself is essential in assessing and determining if you should or should not take a chance.
Think twice, leap once.