The surest sign that you haven't any sense is to argue with one who hasn't.

You can't cross the sea merely by standing and staring at the water. Don't let yourself indulge in vain wishes.

When I want your opinion I'll give it to you.

You don't need to take a persons advice to make him feel good, just ask him for it.

You can always tell a real friend: when you've made a fool of yourself he doesn't feel you've done a permanent job.

The unexpected always happens.

Competition in academia is so vicious because the stakes are so small.