Acquire new knowledge whilst thinking over the old, and you may become a teacher of others.

Experience is the only teacher we have. We may talk and reason all our lives, but we shall not understand a word of truth until we experience it ourselves.

Wherever you are in your journey, I hope you, too, will keep encountering challenges. It is a blessing to be able to survive them, to be able to keep putting one foot in front of the other-to be in a position to make the climb up life's mountain, knowing that the summit still lies ahead. And every experience is a valuable teacher.

The wisest and noblest teacher is nature itself.

We should not look back unless it is to derive useful lessons from past errors, and for the purpose of profiting by dearly bought experience.

Experience, as a desire for experience, does not come off. We must not study ourselves while having an experience.