Ecclesiastes 9:5-6, 10

For the living know that they will die; But the dead know nothing, And they have no more reward, For the memory of them is forgotten. Also their love, their hatred, and their envy have now perished; Nevermore will they have a share In anything done under the sun.

Whatever your hand finds to do, do it with your might; for there is no work or device or knowledge or wisdom in the grave where you are going.