Her loving kindnesses towards others are truly inspiring.

She showed great loving-kindnesses towards her friends.

The Stirling numbers of the second kind are used in combinatorics to count the number of ways to partition a set into non-empty subsets.

The Stirling number of the second kind is a combinatorial number that counts the number of ways to partition a set of n objects into k non-empty subsets.

I can dance any old kind of way.

Would you be so kind as to pass me the salt?

Perpetual motion machines of the first kind are hypothetical machines that can operate indefinitely without an external energy source.

Perpetual motion machines of the second kind are a theoretical concept in physics.

A perpetual motion machine of the first kind is a hypothetical machine that can operate indefinitely without an external energy source.

The perpetual motion machine of the second kind is a hypothetical device that violates the laws of thermodynamics.