Freshness is important. If a game is fresh, new, intriguing, challenging, and enchanting, it will sell, and sell well.
Grammar, which knows how to control even kings.
Just as treasures are uncovered from the earth, so virtue appears from good deeds, and wisdom appears from a pure and peaceful mind. To walk safely through the maze of human life, one needs the light of wisdom and the guidance of virtue.
There is an element of luck, there is an element of trial and error, sometimes you fail, sometimes you succeed. It's not as beautifully simple as it may seem when we are talking about it.