When learning languages, there is the 1000 word method. It is proven that learning the 1000 most commonly used words in a language is the fastest way to learn that language assuming you frequently speak the language also. The 1000 word method requires you to start with 100 and gradually work your way up! When learning words, there are 2 "stages". The first is to learn from foreign language to your own language, which is easier. The second is to do the reverse! Which is more difficult.