A good start is half the battle. ——Horace

Questioning is the first step towards philosophy. - Diderot

Great wisdom is like foolishness, great skill is like clumsiness, and great debate is like indolence. ——Lao Tzu

Know your enemy and yourself, and you can fight a hundred battles without danger. 　　　　————Sun Tzu

He is my slave and should obey my will and be used by me. ——Marx

Knowledge is power, and power is knowledge. ——Bacon

The imagination of an unlearned person has only wings but no feet. ——Franklin

We must absorb useful knowledge like a sponge. - Kalinin

My husband has ambitions all over the world, but I can say goodbye to poverty. ——Du Fu

It is difficult to start a business and difficult to maintain success, but it is not difficult to know the difficulty. 　　　　——Wu Jingzi