Please calculate the volume of this cone.

Believing that failure is a stepping stone to success, he challenged again.

Believing that failure leads to success, he continued to challenge himself over and over again.

He likes to take a walk in the park at dusk.

This contract includes a warranty against defects.

He admitted that it is difficult to execute the plan, saying 'it is easier said than done.'

Well then, I'm off.

I got a haircut today.

Paulownia was his favorite tree.

A healthy diet and moderate exercise help boost immunity.