Nature is a good teacher; he who can read the nature well, he can learn sagacious things belong to life from it. Once you stepped in the nature, your philosophical education starts.
Every morning in Africa, an antelope wakes up. It knows it must outrun the fastest lion, or it will be killed. Every morning in Africa, a lion wakes up. It knows it must run faster than the slowest antelope, or it will starve. It doesn’t matter whether you’re the lion or an antelope – when the sun comes up, you’d better be running (African Proverb).