While we are examining into everything we sometimes find truth where we least expected it.

Everything that has a beginning comes to an end.

In almost everything, experience is more valuable than precept.

While we are making up our minds as to when we shall begin, the opportunity is lost.

The mind is exercised by the variety and multiplicity of the subject matter, while the character is moulded by the contemplation of virtue and vice.

Where evil habits are once settled, they are more easily broken than mended.