The essence of life is the external expression of historical memory (genetic gene) of spatial movement after BIGBANG. Time-effect wave said: "The internal contradiction of things is the internal driving force for the development of things. In the process of the evolution of inorganic matter to primitive life, the unique material structure and environmental conditions at that time were external causes, and the contradiction between the most basic attribute of matter, that is, inertia maintaining balance and action causing change, was the internal driving force (internal cause) to promote the qualitative change of organic matter to primitive life; With the passage of time, the metabolic function of externalized life and the genetic variation of internalized life have created a variety of lives from aquatic to terrestrial, from simple to complex, from low to high, under the action of the natural selection law of' natural selection, survival of the fittest', consciously and unconsciously playing the subjective initiative of seeking advantages and avoiding disadvantages and adapting to the environment.

Second, the meaning of life.

Different people have different meanings to life. People ask whether the meaning of life is meaningless. Just like asking people why they like happiness, everyone is alive and enriching the meaning of life. If you really want to say meaning, it is life.

Third, slogans about life and health.

1, please take good care of green, which is the source of life.

2. There is only one life. If you cherish it, it will repay you. If you don't cherish it, it will leave you mercilessly.

3, flowers need the help of green leaves, and schools need the protection of classmates!

Please take me home when you don't want me.

Life is like quicksand between fingers. If you can't catch it, you should cherish it more.

6. Make green visible and green audible.

7. Touch the soul in the name of love; Moisturize life with the purity of water.

8. Green lights up our eyes so that we can see the green life under our feet.

9, life is like a song, as long as you sing with your heart, you can sing the most touching melody; Life is picturesque, as long as you paint it with your heart, you can paint the most magnificent blueprint.

10, you cherish my life and I will give you a shade.

1 1. Make the campus sunny, full of green.

12, the fountain of life is gurgling, the song of life is full of joy, and the love of life is boundless.

13, flowers are blooming and birds are singing. The voice of the book is deep and affectionate.

14, sunshine makes spring last forever, and personality makes charm last forever.