His confutation of the theory was well-reasoned and persuasive.

For some reason, I couldn't sleep last night.

The reason why I love to travel is to explore new cultures.

He used deductive reasoning to solve the problem.

Inductive reasoning is used to draw conclusions from specific instances.

He reasoned about the cause of the problem.

The reasons cited most often for not making the leap to a new career are fear and financial instability.