I joined a local Linux user group.

There is a Chinese saying: One who does not know how to smile has no business to be in business. How much truer is this of people engaged in the business of diplomacy!

Loose lips might sink ships.

The clockwise beating of cilia results in a net flow of extraembryonic fluid leftwards, which may result in the accumulation of an unidentified leftness determinant, which flows into the node symmetrically, on the left side of the node.