Thrift, a common virtue; Waste is a great evil.

Diligence and idleness ruin success.

Luxury is frugal, but fierceness is in sight. Bai Juyi

People who scrimp on food and clothing on weekdays can easily tide over the difficulties when they are poor; People who are extravagant in abundance will die of hunger and cold in poverty.

Sadi

Once there is a demand for technology in society, this demand will promote the development of science in more than ten universities.

Friedrich Engels

Being poor and white and living a simple life is exactly where we revolutionaries can overcome many difficulties! fang zhimin

Don't worry about poverty, don't seek wealth. Tao Yuanming

Society is like a ship, and everyone should be ready to steer. Ibsen

Although the activities of the world have many shortcomings, they are still beautiful. rodin

If the world is calm and full of flattery, there will be room for shameless, fraud and ignorance; No one will expose it again, and no one will tell the cruel truth again! Belinsky