原则性

原 = 厂 + 自 + 小 : Mnemonic symbol: I like how 原子, literally "original seed", means "atom". I'll represent 原 by 原子弹, an atomic bomb.

原 = 厂 + 自 + 小 : In the anthill's kitchen Yu the Great is modding a chocolate factory into a nuclear chocolate factory by powering it with an atomic bomb. Because it is hard to look inside the bomb through it's small opening, she uses a hand mirror to see inside and connect the wires. She also used a lot of daisies to decorate the bomb and underline her peaceful intentions.

原 = 厂 + 自 + 小 : Mnemonic symbol: I like how 原子, literally "original seed", means "atom". I'll represent 原 by 原子弹, an atomic bomb.

原 = 厂 + 自 + 小 : In the anthill's kitchen Yu the Great is modding a chocolate factory into a nuclear chocolate factory by powering it with an atomic bomb. Because it is hard to look inside the bomb through it's small opening, she uses a hand mirror to see inside and connect the wires. She also used a lot of daisies to decorate the bomb and underline her peaceful intentions.

则 = 刂 + 贝 : Mnemonic symbol: 武则天 (Wu Zetian), the only female emperor of China in more than four millennia. It makes sense because for sure she wrote many official statements, for which 则 is the classifier.

则 = 刂 + 贝 : Just inside the elevator's kitchen, Zorro found a crab. He already has a kitchen knife in his hand and wants to kill and eat the crab, but Wu Zetian quickly writes an official rule that forbids the eating of crabs, much to Zorro's disappointment.

性 = 忄 + 生 : Marie Curie had a strong character since she was little. Even in her cradle in the engine's bathroom she was only playing with a flail.