乐观

optimistic; positive; cheerful; hopeful; sanguine; upbeat; bullish; rosy; optimistically; positively with optimism; optimism

人生

life; human life; lifetime; life experience; world

态度

attitude; approach; stance; posture; manner; line; view; position; voice; spirit; feeling; behaviour; stand; perspective; orientation; point of view; slant; side; culture; thinking; outlook; temper; -ism; attitude toward; stance on; approach to; position on; take on; attitudinal