Solipsism - The belief that the only thing that somebody can be sure of is that he or she exists, and that true knowledge of anything else is impossible.
That is pretty close, but not exactly, to the Taoist/Buddhist take. They would want to say: true CONVENTIONAL knowledge of anything else is impossible.
The hip throw White Crane in Wu style? Hmmm. The main application is to get in and hit the opponent's hip with your hip, then stand up slightly to cut their root from the floor. You are offsetting them with your hip, in other words. Once they are up, you turn through the hip to the side (for momentum) and then lean in the direction you want them to go, accelerating them downward with the motion of your torso and arms. The feet are together when this is being done (in hip throws from some other martial arts, say, Judo, the feet are apart, exposing the groin to a shot from the falling opponent). Indeed, if the opponent is sginificantly taller, you will do the throw with your weight on your toes! You will have a greater distance upward to go to offset them, sometimes. We train to be effective through the entire range of weight distribution on our feet.
It is a very safe throw, when done in training, as the usual way we set it up has the person landing flat on their back, which distributes the weight evenly. There is less likelihood of injury to a relative beginner that way. For this reason it is the first throw that we train, people can get used to flying through the air upside down and hitting the floor. The more times that they do this, the less intimidating that the floor becomes. People can relax into it, which further reduces the chance of injury in a fall. Relax enough and you can completely remove the chance of injury in such a fall after many hours of training.
The White Crane hip throw is very handy against taller people, not so useful with those shorter than you. There are many variations of this basic pattern. The first variation is called Reverse White Crane, where instead of using the person's torso for leverage and acceleration in the throw, you use their neck from behind or the side. Done in the right timing, their neck will snap as you throw them. They could conceivably be dead before they hit the floor. Gruesome, but effective.
So there you go. We have many other throws and combinations of throws, Repulse Monkey, Single Whip, Single and Double Lotus, etc. but for safety reasons White Crane Spreads Wings is the first one.