Self-control is only courage under another form. It may also be regarded as the primary essence of character.

Help from without is often enfeebling in its effects, but help from within invariably invigorates.

Courage is by no means incompatible with tenderness. On the contrary, gentleness and tenderness have been found to characterize the men, no less than the women, who have done the most courageous deeds.

The very greatest things - great thoughts, discoveries, inventions - have usually been nurtured in hardship, often pondered over in sorrow, and at length established with difficulty.

It is energy - the central element of which is will - that produces the miracle that is enthusiasm in all ages. Everywhere it is what is called force of character and the sustaining power of all great action

The apprenticeship of difficulty is one which the greatest of men have had to serve.

Time is of no account with great thoughts, which are as fresh to -day as when they first passed through their authors' minds ages ago.