Always use stop loss orders.
数学之美不仅在于其抽象的优雅,还在于其建模和解决现实世界问题的深刻能力。
However difficult life may seem, there is always something you can do and succeed at.
"We are all of us made by what we have lost as much as what we have gained."
"Every discovery in science is a step closer to understanding our place in the cosmos."
The best way to untangle a knotty tangle is not to “untie” the knots, but to keep pulling the loops apart wider and wider. Just make the mess as big, loose and open as possible. As you open up the knots they will unravel themselves. Works on cords, strings, hoses, yarns, or electronic cables.