ma·ven also ma·vin n.
A person who has special knowledge or experience; an expert.
http://www.thefreedictionary.com/maven
A maven (also mavin) is a trusted expert in a particular field, who seeks to pass knowledge on to others. The word maven comes from Hebrew, via Yiddish, and means one who understands, based on an accumulation of knowledge.
http://en.wikipedia.org/wiki/Maven
Daniel 8
23. And in the latter time of their kingdom, when the transgressors have reached their full measure, a king of fierce countenance ["az panim" - idiom meaning insolent, brazen], and one who understand riddles ["mavin chidot" - one knowledgeable/experienced in enigmas], shall arise:
24. And his power shall be mighty, but not by his own power; and he shall cause awesome destruction, and he shall prosper, and act, and he shall destroy the mighty and the holy people:
25. And through his cunning he shall make deceit prosper under his hand; and he shall magnify himself in his heart, and without difficulty shall destroy many; he shall also stand up against the Prince of princes; but he shall be broken by no human hand:
26. And the vision [mar'eh] of the evenings and the mornings which was told is true; but seal up the vision [hazon - a perceived revelation, prophecy], for it refers to many days hence:
27. And I Daniel fainted, and was sick several days; afterwards I rose and did the king's business; and I was astonished at the vision [mar'eh], but none understood it:
I was astonished at the vision, but none understood it
astonished: shamem - to be desolated, stunned, appalled, horrified, stupified
vision: mar'eh - from the common verb meaning to see/look: look, appearance; sight, view
but none understood it: v'ayn mevin - but there was no person of understanding, lit. there is/was no maven/mavin
And the look/appearance of this evening [ha-erev] and this morning [ha-boqer] which was told is true; but seal up the vision [hazon - a perceived revelation, prophecy], for it refers to many days hence:
And I Daniel fainted, and was sick several days; afterwards I rose and did the king's business; and I was appalled at the appearance, but there was no expert (maven).
Obama: I'd fix HealthCare.gov myself, "but I don't write code"
Matthew 16:1-3
In order to understand why “Red sky at night, sailor’s delight. Red sky in morning, sailor’s warning” can predict the weather, we must understand more about weather and the colors in the sky.
Usually, weather moves from west to east, blown by the westerly trade winds. This means storm systems generally move in from the West.
The colors we see in the sky are due to the rays of sunlight being split into colors of the spectrum as they pass through the atmosphere and ricochet off the water vapor and particles in the atmosphere. The amounts of water vapor and dust particles in the atmosphere are good indicators of weather conditions. They also determine which colors we will see in the sky.
During sunrise and sunset the sun is low in the sky, and it transmits light through the thickest part of the atmosphere. A red sky suggests an atmosphere loaded with dust and moisture particles. We see the red, because red wavelengths (the longest in the color spectrum) are breaking through the atmosphere. The shorter wavelengths, such as blue, are scattered and broken up.
Red sky at night, sailors delight.
When we see a red sky at night, this means that the setting sun is sending its light through a high concentration of dust particles. This usually indicates high pressure and stable air coming in from the west. Basically good weather will follow.
Red sky in morning, sailor’s warning.
A red sunrise reflects the dust particles of a system that has just passed from the west. This indicates that a storm system may be moving to the east. If the morning sky is a deep fiery red, it means a high water content in the atmosphere. So, rain is on its way.
The Library of Congress - Everyday Mysteries
...and the appearance of this evening and this morning which was told is true...
"Boker Tov, America"
(Good Morning, America)