No two minds are alike, [just as] no two faces are alike.

Berachot 58a

Every problem has in it the seeds of its own solution. If you don't have any problems, you don't get any seeds.

Norman Vincent Peale

Every saint has a past, and every sinner has a future.

Oscar Wilde

To get lost is to learn the way.

African Proverb

It is not the size of a man but the size of his heart that matters.

Evander Holyfield

Zeal without knowledge is fire without light.

Thomas Huxley