The difference between countable and uncountable nouns
Countable nouns can be counted (a/one book, two books, a lot of books), while uncountable nouns cannot (*a/one news, *two freedoms). Therefore, uncountable nouns only have singular forms and are followed by singular verbs. We should bear in mind that, even though a noun is uncountable in English, the word for it in another language may well be countable, and vice versa. When in doubt, one should always consult a dictionary. However, certain kinds of nouns are usually countable or uncountable in English:
Countable nouns
people (a teacher, a child, a gentleman)
animals (a butterfly, an elephant, a whale)
plants (a flower, a bush, a tree)
physical objects (a bag, a pen, a mountain)
units (a litre (of), a kind of, a part of, a family, a village, a word)
Uncountable nouns
abstract ideas (love, death, beauty)
gases (smoke, air, steam)
liquids (water, milk, blood)
substances and materials (wood, iron, fabric)
other substances consisting of many small particles (sugar, rice, sand)
Quotes:
Life is like riding a bicycle - in order to keep your balance, you must keep moving. - Albert Einstein
The best way to gain self-confidence is to do what you are afraid to do. - Author unknown
I don't know the key to success, but the key to failure is trying to please everybody. - Bill Cosby
The only place where success comes before work is in the dictionary. - Donald Kendall
Courage is doing what you're afraid to do. There can be no courage unless you're scared. - Edward Vernon Rickenbacker
The greatest weariness comes from work not done. - Eric Hoffer
Gossip needn't be false to be evil - there's a lot of truth that shouldn't be passed around. - Frank A. Clark
Success usually comes to those who are too busy to be looking for it. - Henry David Thoreau
Motivation is what gets you started. Habit is what keeps you going. - Jim Rohn
Freedom lies in being bold. - Robert Frost
Friendship is a sheltering tree. - Samuel Taylor Coleridge
Fate leads the willing, and drags along the reluctant. - Seneca
Life is a shipwreck but we must not forget to sing in the lifeboats. - Voltaire
Knowledge is learning something every day. Wisdom is letting go of something every day. - Zen saying