Write a sentence using "Be afraid of wolves before and be afraid of tigers later"

Write a sentence using the phrase "fear of wolves before and fear of tigers at the back" as follows:

1. People who are afraid of wolves before and tigers at the back will not be able to do great things.

2. If we are afraid of wolves before and tigers behind, we will definitely achieve nothing.

3. Being afraid of wolves in the front and tigers in the back is fruitless.

The introduction of wolves is as follows:

Wolf (scientific name: Canis lupus): It is an animal of the order Carnivora and the family Canidae. ***There are 11 subspecies. The body is medium and well-proportioned, with slender limbs and toes, which is conducive to fast running. The head and palate are pointed, the face is long, the nose is prominent, the ears are pointed and upright, the sense of smell is sensitive, and the hearing is well developed. Canine teeth and cleft teeth are well developed. The hair is thick and long.

The front feet have 4-5 toes, and the hind feet generally have 4 toes; the claws are thick and blunt, and cannot or are slightly retractable. The tail is hairy and relatively developed. The body color of wolves is generally yellow-gray, with hairs on the back that are brown at the base and black at the tips.

There are also dark brown, yellow and milky white mixed hairs. There are more black hairs on the tail. The abdomen and the inside of the limbs are milky white. In addition, there are pure black, pure white, brown, brown, gray and sand colors. Metachromatic type.

The living habits of wolves are introduced as follows:

Inhabit forests, deserts, mountains, tundra, coniferous forests, and grasslands. It is a nocturnal animal, good at running fast and long distances, and likes to live in groups. During the day, it often curls up alone or in pairs in caves, but it also comes out to be active during the day in sparsely populated areas.

When foraging for food at night, they often howl loudly in the open forests, and the sound is heard in all directions. Often chasing prey. Carnivorous, feeds on herbivores and rodents. Distributed throughout the world except Antarctica and most islands.

Tiger is introduced as follows:

Tiger (scientific name: Panthera tigris; English name: Tiger): is a large cat in the class Mammalia; its fur is light yellow or brown, with black stripes all over its body. The head is round, the ears are short, the back of the ears is black, and there is a very conspicuous white spot in the center.

The limbs are strong and powerful; the tail is thick and long, with black rings and a black tail end. There are nine subspecies of ***, and the size and shape of each subspecies vary greatly. The Siberian tiger is the largest, with males reaching 3.7 meters in length and weighing 423 kilograms. The Sumatran tiger is the smallest living subspecies. Male tigers are 2.34 meters long and weigh 136 kilograms.