Reading and writing are different skills.
A fabric made of different kinds of thread or yarn.
Virtue and vice are two different things: the former/that/the one leads to peace, the latter/this/the other to misery.
In the past the voice of dissension had been quickly snuffed out.
I look at this problem from a different viewpoint.
A process or state in which rays of light exhibit different properties in different directions, especially the state in which all the vibration takes place in one plane.