Sure, here are some useful life quotes:

"The only way to do great work is to love what you do." - Steve Jobs

"Believe you can and you're halfway there." - Theodore Roosevelt

"In the end, it's not the years in your life that count. It's the life in your years." - Abraham Lincoln

"The future belongs to those who believe in the beauty of their dreams." - Eleanor Roosevelt

"Happiness is not something ready-made. It comes from your own actions." - Dalai Lama XIV

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

"The greatest glory in living lies not in never falling, but in rising every time we fall." - Nelson Mandela

"I have not failed. I've just found 10,000 ways that won't work." - Thomas A. Edison

"You miss 100% of the shots you don't take." - Wayne Gretzky

"Life is 10% what happens to us and 90% how we react to it." - Charles R. Swindoll

These quotes can serve as reminders to live life to the fullest, to never give up, to pursue our dreams, and to stay positive even in the face of challenges.  

Sure, here are some ideas to feed your brain:

1. Read a book: Reading can improve your cognitive function, vocabulary, and overall knowledge. Choose a book that interests you, whether it's fiction or non-fiction, and spend some time each day reading.

2. Learn a new skill: Learning a new skill can stimulate your brain and provide a sense of accomplishment. Try learning a new language, playing an instrument, or taking up a new hobby.

3. Solve puzzles: Puzzles such as crossword puzzles, Sudoku, and jigsaw puzzles can improve your problem-solving skills and boost your memory.

4. Listen to music: Music has been shown to improve mood, reduce stress, and improve cognitive function. Listen to music that you enjoy and try to identify different instruments or musical elements.

5. Exercise: Exercise not only benefits your physical health but can also improve your brain function. Engage in regular physical activity, whether it's going for a walk, a jog, or taking a fitness class.

6. Meditate: Meditation can reduce stress and improve focus and concentration. Spend a few minutes each day practicing meditation or mindfulness techniques.

7. Travel: Traveling can expose you to new cultures and experiences, which can broaden your perspective and challenge your brain in new ways.

8. Eat brain-boosting foods: Certain foods such as nuts, fatty fish, berries, and leafy greens have been shown to improve cognitive function and brain health. Incorporate these foods into your diet for a brain boost.

By feeding your brain with these activities and habits, you can improve your cognitive function, boost your memory, and enhance your overall brain health.