Winston Churchill

Never give in, never give in, never, never, never, never – in nothing, great or small, large or petty – never give in except to convictions of honor and good sense.

Success is not final, failure is not fatal: it is the courage to continue that counts.

To improve is to change, to be perfect is to change often.

You cannot tell from appearances how things will go. Sometimes imagination makes things out far worse than they are; yet without imagination not much can be done. Those people who are imaginative see many more dangers than perhaps exist, certainly many more than will happen; but then they must also pray to be given that [...]

Success is the ability to move from failure to failure without loss of enthusiasm.

Before you can inspire with emotion, you must be swamped with it yourself. Before you can move their tears, your own must flow. To convince them, you must yourself believe.