Gossipers derive pleasure from other people's misfortunes. It might be fun to peer into somebody else's personal or professional faux pas at first, but over time, it gets tiring, makes you feel gross, and hurts other people.

Toxic people defy logic. Some are blissfully unaware of the negative impact that they have on those around them, and others seem to derive satisfaction from creating chaos and pushing other people's buttons.

Humans are creatures of habit. If you quit when things get tough, it gets that much easier to quit the next time. On the other hand, if you force yourself to push through it, the grit begins to grow in you.

Great leadership can be a difficult thing to pin down and understand. You know a great leader when you're working for one, but even they can have a hard time articulating what it is that makes their leadership so effective.

Many companies restrict Internet activity so heavily that it makes it difficult for people to do online research. The most obvious example? Checking the Facebook profile of someone you just interviewed.

People are salaried for the work they do, not the specific hours they sit at their desks. When you ding salaried employees for showing up five minutes late even though they routinely stay late and put in time on the weekend, you send the message that policies take precedence over performance.