Lest thou shouldest ponder the path of life, her ways are moveable, that thou canst not know them. Lest thou shouldest ponder - To prevent thee from reflecting on thy present conduct, and its consequences, her ways are moveable - she continually varies her allurements.
Thou canst not know them - It is impossible to conceive all her tricks and wiles: to learn these in all their varieties, is a part of the science first taught in that infernal trade.